Home / 52,128.20-71,937.29-28,255.04

Finding the Fourth Proportional to 52,128.20, 71,937.29 and 28,255.04

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Solution

The fourth proportional to 52,128.20, 71,937.29 and 28,255.04 is: 38,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.20 : 71,937.29 = 28,255.04 : x
  2. Step 2: Convert to fraction form
    52,128.20/71,937.29 = 28,255.04/x
  3. Step 3: Cross multiply
    52,128.20x = 71,937.29 × 28,255.04
  4. Step 4: Simplify right side
    52,128.20x = 2,032,590,505.48
  5. Step 5: Solve for x
    x = 2,032,590,505.48/52,128.20
  6. Step 6: Final answer
    x = 38,992.15

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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.