Home / 83,649.20-115,385.18-49,635.27

Finding the Fourth Proportional to 83,649.20, 115,385.18 and 49,635.27

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Solution

The fourth proportional to 83,649.20, 115,385.18 and 49,635.27 is: 68,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,649.20 : 115,385.18 = 49,635.27 : x
  2. Step 2: Convert to fraction form
    83,649.20/115,385.18 = 49,635.27/x
  3. Step 3: Cross multiply
    83,649.20x = 115,385.18 × 49,635.27
  4. Step 4: Simplify right side
    83,649.20x = 5,727,174,315.12
  5. Step 5: Solve for x
    x = 5,727,174,315.12/83,649.20
  6. Step 6: Final answer
    x = 68,466.58

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1.5x scale

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.