Home / 56,719.21-85,078.81-15,165.13

Finding the Fourth Proportional to 56,719.21, 85,078.81 and 15,165.13

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Solution

The fourth proportional to 56,719.21, 85,078.81 and 15,165.13 is: 22,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,719.21 : 85,078.81 = 15,165.13 : x
  2. Step 2: Convert to fraction form
    56,719.21/85,078.81 = 15,165.13/x
  3. Step 3: Cross multiply
    56,719.21x = 85,078.81 × 15,165.13
  4. Step 4: Simplify right side
    56,719.21x = 1,290,230,788.50
  5. Step 5: Solve for x
    x = 1,290,230,788.50/56,719.21
  6. Step 6: Final answer
    x = 22,747.69

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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.