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Finding the Fourth Proportional to 61,158.30, 91,737.45 and 53,382.30

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Solution

The fourth proportional to 61,158.30, 91,737.45 and 53,382.30 is: 80,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,158.30 : 91,737.45 = 53,382.30 : x
  2. Step 2: Convert to fraction form
    61,158.30/91,737.45 = 53,382.30/x
  3. Step 3: Cross multiply
    61,158.30x = 91,737.45 × 53,382.30
  4. Step 4: Simplify right side
    61,158.30x = 4,897,156,077.14
  5. Step 5: Solve for x
    x = 4,897,156,077.14/61,158.30
  6. Step 6: Final answer
    x = 80,073.45

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1.5x scale

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.