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Finding the Fourth Proportional to 56,079.59, 84,119.23 and 13,958.89

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Solution

The fourth proportional to 56,079.59, 84,119.23 and 13,958.89 is: 20,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079.59 : 84,119.23 = 13,958.89 : x
  2. Step 2: Convert to fraction form
    56,079.59/84,119.23 = 13,958.89/x
  3. Step 3: Cross multiply
    56,079.59x = 84,119.23 × 13,958.89
  4. Step 4: Simplify right side
    56,079.59x = 1,174,211,078.45
  5. Step 5: Solve for x
    x = 1,174,211,078.45/56,079.59
  6. Step 6: Final answer
    x = 20,938.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.