Home / 84,112.68-125,988.10-39,672.84

Finding the Fourth Proportional to 84,112.68, 125,988.10 and 39,672.84

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Solution

The fourth proportional to 84,112.68, 125,988.10 and 39,672.84 is: 59,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,112.68 : 125,988.10 = 39,672.84 : x
  2. Step 2: Convert to fraction form
    84,112.68/125,988.10 = 39,672.84/x
  3. Step 3: Cross multiply
    84,112.68x = 125,988.10 × 39,672.84
  4. Step 4: Simplify right side
    84,112.68x = 4,998,305,733.20
  5. Step 5: Solve for x
    x = 4,998,305,733.20/84,112.68
  6. Step 6: Final answer
    x = 59,423.93

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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.