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Finding the Fourth Proportional to 41,152.38, 61,728.60 and 9,987.66

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Solution

The fourth proportional to 41,152.38, 61,728.60 and 9,987.66 is: 14,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,152.38 : 61,728.60 = 9,987.66 : x
  2. Step 2: Convert to fraction form
    41,152.38/61,728.60 = 9,987.66/x
  3. Step 3: Cross multiply
    41,152.38x = 61,728.60 × 9,987.66
  4. Step 4: Simplify right side
    41,152.38x = 616,524,269.08
  5. Step 5: Solve for x
    x = 616,524,269.08/41,152.38
  6. Step 6: Final answer
    x = 14,981.50

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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.