Home / 67,445.12-93,087.20-40,227.90

Finding the Fourth Proportional to 67,445.12, 93,087.20 and 40,227.90

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Solution

The fourth proportional to 67,445.12, 93,087.20 and 40,227.90 is: 55,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,445.12 : 93,087.20 = 40,227.90 : x
  2. Step 2: Convert to fraction form
    67,445.12/93,087.20 = 40,227.90/x
  3. Step 3: Cross multiply
    67,445.12x = 93,087.20 × 40,227.90
  4. Step 4: Simplify right side
    67,445.12x = 3,744,702,572.88
  5. Step 5: Solve for x
    x = 3,744,702,572.88/67,445.12
  6. Step 6: Final answer
    x = 55,522.22

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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.