Home / 81,512.91-122,088.72-62,654.10

Finding the Fourth Proportional to 81,512.91, 122,088.72 and 62,654.10

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Solution

The fourth proportional to 81,512.91, 122,088.72 and 62,654.10 is: 93,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.91 : 122,088.72 = 62,654.10 : x
  2. Step 2: Convert to fraction form
    81,512.91/122,088.72 = 62,654.10/x
  3. Step 3: Cross multiply
    81,512.91x = 122,088.72 × 62,654.10
  4. Step 4: Simplify right side
    81,512.91x = 7,649,358,871.75
  5. Step 5: Solve for x
    x = 7,649,358,871.75/81,512.91
  6. Step 6: Final answer
    x = 93,842.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.