Home / 67,690.08-101,419.56-47,935.80

Finding the Fourth Proportional to 67,690.08, 101,419.56 and 47,935.80

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Solution

The fourth proportional to 67,690.08, 101,419.56 and 47,935.80 is: 71,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,690.08 : 101,419.56 = 47,935.80 : x
  2. Step 2: Convert to fraction form
    67,690.08/101,419.56 = 47,935.80/x
  3. Step 3: Cross multiply
    67,690.08x = 101,419.56 × 47,935.80
  4. Step 4: Simplify right side
    67,690.08x = 4,861,627,744.25
  5. Step 5: Solve for x
    x = 4,861,627,744.25/67,690.08
  6. Step 6: Final answer
    x = 71,821.86

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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.