Home / 71,567.10-107,350.65-45,387.90

Finding the Fourth Proportional to 71,567.10, 107,350.65 and 45,387.90

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Solution

The fourth proportional to 71,567.10, 107,350.65 and 45,387.90 is: 68,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,567.10 : 107,350.65 = 45,387.90 : x
  2. Step 2: Convert to fraction form
    71,567.10/107,350.65 = 45,387.90/x
  3. Step 3: Cross multiply
    71,567.10x = 107,350.65 × 45,387.90
  4. Step 4: Simplify right side
    71,567.10x = 4,872,420,567.14
  5. Step 5: Solve for x
    x = 4,872,420,567.14/71,567.10
  6. Step 6: Final answer
    x = 68,081.85

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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.