Home / 83,003.60-124,505.40-30,391.76

Finding the Fourth Proportional to 83,003.60, 124,505.40 and 30,391.76

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Solution

The fourth proportional to 83,003.60, 124,505.40 and 30,391.76 is: 45,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,003.60 : 124,505.40 = 30,391.76 : x
  2. Step 2: Convert to fraction form
    83,003.60/124,505.40 = 30,391.76/x
  3. Step 3: Cross multiply
    83,003.60x = 124,505.40 × 30,391.76
  4. Step 4: Simplify right side
    83,003.60x = 3,783,938,235.50
  5. Step 5: Solve for x
    x = 3,783,938,235.50/83,003.60
  6. Step 6: Final answer
    x = 45,587.64

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1.5x scale

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.