Home / 52,128.23-71,937.02-28,254.89

Finding the Fourth Proportional to 52,128.23, 71,937.02 and 28,254.89

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Solution

The fourth proportional to 52,128.23, 71,937.02 and 28,254.89 is: 38,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.23 : 71,937.02 = 28,254.89 : x
  2. Step 2: Convert to fraction form
    52,128.23/71,937.02 = 28,254.89/x
  3. Step 3: Cross multiply
    52,128.23x = 71,937.02 × 28,254.89
  4. Step 4: Simplify right side
    52,128.23x = 2,032,572,837.51
  5. Step 5: Solve for x
    x = 2,032,572,837.51/52,128.23
  6. Step 6: Final answer
    x = 38,991.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.