Home / 71,618.04-107,395.20-38,331.72

Finding the Fourth Proportional to 71,618.04, 107,395.20 and 38,331.72

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Solution

The fourth proportional to 71,618.04, 107,395.20 and 38,331.72 is: 57,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,618.04 : 107,395.20 = 38,331.72 : x
  2. Step 2: Convert to fraction form
    71,618.04/107,395.20 = 38,331.72/x
  3. Step 3: Cross multiply
    71,618.04x = 107,395.20 × 38,331.72
  4. Step 4: Simplify right side
    71,618.04x = 4,116,642,735.74
  5. Step 5: Solve for x
    x = 4,116,642,735.74/71,618.04
  6. Step 6: Final answer
    x = 57,480.53

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1.5x scale

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.