Home / 41,068.78-61,612.41-12,990.52

Finding the Fourth Proportional to 41,068.78, 61,612.41 and 12,990.52

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Solution

The fourth proportional to 41,068.78, 61,612.41 and 12,990.52 is: 19,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,068.78 : 61,612.41 = 12,990.52 : x
  2. Step 2: Convert to fraction form
    41,068.78/61,612.41 = 12,990.52/x
  3. Step 3: Cross multiply
    41,068.78x = 61,612.41 × 12,990.52
  4. Step 4: Simplify right side
    41,068.78x = 800,377,244.35
  5. Step 5: Solve for x
    x = 800,377,244.35/41,068.78
  6. Step 6: Final answer
    x = 19,488.70

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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.