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Finding the Fourth Proportional to 56,358.41, 84,543.26 and 20,829.06

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Solution

The fourth proportional to 56,358.41, 84,543.26 and 20,829.06 is: 31,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.41 : 84,543.26 = 20,829.06 : x
  2. Step 2: Convert to fraction form
    56,358.41/84,543.26 = 20,829.06/x
  3. Step 3: Cross multiply
    56,358.41x = 84,543.26 × 20,829.06
  4. Step 4: Simplify right side
    56,358.41x = 1,760,956,530.99
  5. Step 5: Solve for x
    x = 1,760,956,530.99/56,358.41
  6. Step 6: Final answer
    x = 31,245.68

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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.