Home / 45,942.60-68,780.10-34,148.72

Finding the Fourth Proportional to 45,942.60, 68,780.10 and 34,148.72

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Solution

The fourth proportional to 45,942.60, 68,780.10 and 34,148.72 is: 51,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,942.60 : 68,780.10 = 34,148.72 : x
  2. Step 2: Convert to fraction form
    45,942.60/68,780.10 = 34,148.72/x
  3. Step 3: Cross multiply
    45,942.60x = 68,780.10 × 34,148.72
  4. Step 4: Simplify right side
    45,942.60x = 2,348,752,376.47
  5. Step 5: Solve for x
    x = 2,348,752,376.47/45,942.60
  6. Step 6: Final answer
    x = 51,123.63

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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.