Home / 61,129.38-91,675.80-18,433.02

Finding the Fourth Proportional to 61,129.38, 91,675.80 and 18,433.02

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Solution

The fourth proportional to 61,129.38, 91,675.80 and 18,433.02 is: 27,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.38 : 91,675.80 = 18,433.02 : x
  2. Step 2: Convert to fraction form
    61,129.38/91,675.80 = 18,433.02/x
  3. Step 3: Cross multiply
    61,129.38x = 91,675.80 × 18,433.02
  4. Step 4: Simplify right side
    61,129.38x = 1,689,861,854.92
  5. Step 5: Solve for x
    x = 1,689,861,854.92/61,129.38
  6. Step 6: Final answer
    x = 27,644.02

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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.