Home / 41,152.68-61,728.78-9,987.72

Finding the Fourth Proportional to 41,152.68, 61,728.78 and 9,987.72

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Solution

The fourth proportional to 41,152.68, 61,728.78 and 9,987.72 is: 14,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,152.68 : 61,728.78 = 9,987.72 : x
  2. Step 2: Convert to fraction form
    41,152.68/61,728.78 = 9,987.72/x
  3. Step 3: Cross multiply
    41,152.68x = 61,728.78 × 9,987.72
  4. Step 4: Simplify right side
    41,152.68x = 616,529,770.58
  5. Step 5: Solve for x
    x = 616,529,770.58/41,152.68
  6. Step 6: Final answer
    x = 14,981.52

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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.