Home / 67,913.28-93,720.30-39,613.50

Finding the Fourth Proportional to 67,913.28, 93,720.30 and 39,613.50

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Solution

The fourth proportional to 67,913.28, 93,720.30 and 39,613.50 is: 54,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,913.28 : 93,720.30 = 39,613.50 : x
  2. Step 2: Convert to fraction form
    67,913.28/93,720.30 = 39,613.50/x
  3. Step 3: Cross multiply
    67,913.28x = 93,720.30 × 39,613.50
  4. Step 4: Simplify right side
    67,913.28x = 3,712,589,104.05
  5. Step 5: Solve for x
    x = 3,712,589,104.05/67,913.28
  6. Step 6: Final answer
    x = 54,666.61

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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.