Home / 83,103.08-124,580.52-30,500.36

Finding the Fourth Proportional to 83,103.08, 124,580.52 and 30,500.36

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Solution

The fourth proportional to 83,103.08, 124,580.52 and 30,500.36 is: 45,723.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,103.08 : 124,580.52 = 30,500.36 : x
  2. Step 2: Convert to fraction form
    83,103.08/124,580.52 = 30,500.36/x
  3. Step 3: Cross multiply
    83,103.08x = 124,580.52 × 30,500.36
  4. Step 4: Simplify right side
    83,103.08x = 3,799,750,708.99
  5. Step 5: Solve for x
    x = 3,799,750,708.99/83,103.08
  6. Step 6: Final answer
    x = 45,723.34

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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.