Home / 83,403.20-125,061.60-30,785.60

Finding the Fourth Proportional to 83,403.20, 125,061.60 and 30,785.60

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Solution

The fourth proportional to 83,403.20, 125,061.60 and 30,785.60 is: 46,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.20 : 125,061.60 = 30,785.60 : x
  2. Step 2: Convert to fraction form
    83,403.20/125,061.60 = 30,785.60/x
  3. Step 3: Cross multiply
    83,403.20x = 125,061.60 × 30,785.60
  4. Step 4: Simplify right side
    83,403.20x = 3,850,096,392.96
  5. Step 5: Solve for x
    x = 3,850,096,392.96/83,403.20
  6. Step 6: Final answer
    x = 46,162.45

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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.