Home / 83,872.22-125,679.12-38,865.81

Finding the Fourth Proportional to 83,872.22, 125,679.12 and 38,865.81

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Solution

The fourth proportional to 83,872.22, 125,679.12 and 38,865.81 is: 58,238.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,872.22 : 125,679.12 = 38,865.81 : x
  2. Step 2: Convert to fraction form
    83,872.22/125,679.12 = 38,865.81/x
  3. Step 3: Cross multiply
    83,872.22x = 125,679.12 × 38,865.81
  4. Step 4: Simplify right side
    83,872.22x = 4,884,620,798.89
  5. Step 5: Solve for x
    x = 4,884,620,798.89/83,872.22
  6. Step 6: Final answer
    x = 58,238.84

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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.