Home / 87,344.04-120,539.70-66,086.40

Finding the Fourth Proportional to 87,344.04, 120,539.70 and 66,086.40

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Solution

The fourth proportional to 87,344.04, 120,539.70 and 66,086.40 is: 91,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,344.04 : 120,539.70 = 66,086.40 : x
  2. Step 2: Convert to fraction form
    87,344.04/120,539.70 = 66,086.40/x
  3. Step 3: Cross multiply
    87,344.04x = 120,539.70 × 66,086.40
  4. Step 4: Simplify right side
    87,344.04x = 7,966,034,830.08
  5. Step 5: Solve for x
    x = 7,966,034,830.08/87,344.04
  6. Step 6: Final answer
    x = 91,202.96

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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.