Home / 67,780.92-93,515.27-40,913.22

Finding the Fourth Proportional to 67,780.92, 93,515.27 and 40,913.22

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Solution

The fourth proportional to 67,780.92, 93,515.27 and 40,913.22 is: 56,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,780.92 : 93,515.27 = 40,913.22 : x
  2. Step 2: Convert to fraction form
    67,780.92/93,515.27 = 40,913.22/x
  3. Step 3: Cross multiply
    67,780.92x = 93,515.27 × 40,913.22
  4. Step 4: Simplify right side
    67,780.92x = 3,826,010,610.30
  5. Step 5: Solve for x
    x = 3,826,010,610.30/67,780.92
  6. Step 6: Final answer
    x = 56,446.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.