Home / 83,406.60-125,084.03-30,091.65

Finding the Fourth Proportional to 83,406.60, 125,084.03 and 30,091.65

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Solution

The fourth proportional to 83,406.60, 125,084.03 and 30,091.65 is: 45,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.60 : 125,084.03 = 30,091.65 : x
  2. Step 2: Convert to fraction form
    83,406.60/125,084.03 = 30,091.65/x
  3. Step 3: Cross multiply
    83,406.60x = 125,084.03 × 30,091.65
  4. Step 4: Simplify right side
    83,406.60x = 3,763,984,776.12
  5. Step 5: Solve for x
    x = 3,763,984,776.12/83,406.60
  6. Step 6: Final answer
    x = 45,128.14

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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.