Home / 90,781.75-125,279.31-52,541.29

Finding the Fourth Proportional to 90,781.75, 125,279.31 and 52,541.29

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Solution

The fourth proportional to 90,781.75, 125,279.31 and 52,541.29 is: 72,507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,781.75 : 125,279.31 = 52,541.29 : x
  2. Step 2: Convert to fraction form
    90,781.75/125,279.31 = 52,541.29/x
  3. Step 3: Cross multiply
    90,781.75x = 125,279.31 × 52,541.29
  4. Step 4: Simplify right side
    90,781.75x = 6,582,336,557.71
  5. Step 5: Solve for x
    x = 6,582,336,557.71/90,781.75
  6. Step 6: Final answer
    x = 72,507.27

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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.