Home / 71,938.26-99,287.62-45,103.76

Finding the Fourth Proportional to 71,938.26, 99,287.62 and 45,103.76

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Solution

The fourth proportional to 71,938.26, 99,287.62 and 45,103.76 is: 62,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,938.26 : 99,287.62 = 45,103.76 : x
  2. Step 2: Convert to fraction form
    71,938.26/99,287.62 = 45,103.76/x
  3. Step 3: Cross multiply
    71,938.26x = 99,287.62 × 45,103.76
  4. Step 4: Simplify right side
    71,938.26x = 4,478,244,983.45
  5. Step 5: Solve for x
    x = 4,478,244,983.45/71,938.26
  6. Step 6: Final answer
    x = 62,251.23

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1.5x scale

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.