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Finding the Fourth Proportional to 52,602.91, 72,590.11 and 28,729.15

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Solution

The fourth proportional to 52,602.91, 72,590.11 and 28,729.15 is: 39,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,602.91 : 72,590.11 = 28,729.15 : x
  2. Step 2: Convert to fraction form
    52,602.91/72,590.11 = 28,729.15/x
  3. Step 3: Cross multiply
    52,602.91x = 72,590.11 × 28,729.15
  4. Step 4: Simplify right side
    52,602.91x = 2,085,452,158.71
  5. Step 5: Solve for x
    x = 2,085,452,158.71/52,602.91
  6. Step 6: Final answer
    x = 39,645.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.