Home / 67,385.31-100,995.97-47,669.55

Finding the Fourth Proportional to 67,385.31, 100,995.97 and 47,669.55

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Solution

The fourth proportional to 67,385.31, 100,995.97 and 47,669.55 is: 71,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,385.31 : 100,995.97 = 47,669.55 : x
  2. Step 2: Convert to fraction form
    67,385.31/100,995.97 = 47,669.55/x
  3. Step 3: Cross multiply
    67,385.31x = 100,995.97 × 47,669.55
  4. Step 4: Simplify right side
    67,385.31x = 4,814,432,441.71
  5. Step 5: Solve for x
    x = 4,814,432,441.71/67,385.31
  6. Step 6: Final answer
    x = 71,446.32

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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.