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Finding the Fourth Proportional to 87,060, 120,154.14 and 51,253.32

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Solution

The fourth proportional to 87,060, 120,154.14 and 51,253.32 is: 70,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,060 : 120,154.14 = 51,253.32 : x
  2. Step 2: Convert to fraction form
    87,060/120,154.14 = 51,253.32/x
  3. Step 3: Cross multiply
    87,060x = 120,154.14 × 51,253.32
  4. Step 4: Simplify right side
    87,060x = 6,158,298,586.74
  5. Step 5: Solve for x
    x = 6,158,298,586.74/87,060
  6. Step 6: Final answer
    x = 70,736.26

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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.