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Finding the Fourth Proportional to 41,155.63, 61,733.46 and 9,990.88

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Solution

The fourth proportional to 41,155.63, 61,733.46 and 9,990.88 is: 14,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,155.63 : 61,733.46 = 9,990.88 : x
  2. Step 2: Convert to fraction form
    41,155.63/61,733.46 = 9,990.88/x
  3. Step 3: Cross multiply
    41,155.63x = 61,733.46 × 9,990.88
  4. Step 4: Simplify right side
    41,155.63x = 616,771,590.84
  5. Step 5: Solve for x
    x = 616,771,590.84/41,155.63
  6. Step 6: Final answer
    x = 14,986.32

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Similar ratio
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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.