Home / 52,489.05-72,434.29-28,615.20

Finding the Fourth Proportional to 52,489.05, 72,434.29 and 28,615.20

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Solution

The fourth proportional to 52,489.05, 72,434.29 and 28,615.20 is: 39,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,489.05 : 72,434.29 = 28,615.20 : x
  2. Step 2: Convert to fraction form
    52,489.05/72,434.29 = 28,615.20/x
  3. Step 3: Cross multiply
    52,489.05x = 72,434.29 × 28,615.20
  4. Step 4: Simplify right side
    52,489.05x = 2,072,721,695.21
  5. Step 5: Solve for x
    x = 2,072,721,695.21/52,489.05
  6. Step 6: Final answer
    x = 39,488.65

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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.