Home / 83,330.75-125,013.87-47,808.38

Finding the Fourth Proportional to 83,330.75, 125,013.87 and 47,808.38

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Solution

The fourth proportional to 83,330.75, 125,013.87 and 47,808.38 is: 71,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,330.75 : 125,013.87 = 47,808.38 : x
  2. Step 2: Convert to fraction form
    83,330.75/125,013.87 = 47,808.38/x
  3. Step 3: Cross multiply
    83,330.75x = 125,013.87 × 47,808.38
  4. Step 4: Simplify right side
    83,330.75x = 5,976,709,977.16
  5. Step 5: Solve for x
    x = 5,976,709,977.16/83,330.75
  6. Step 6: Final answer
    x = 71,722.75

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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.