Home / 81,778.46-112,854.90-45,480.41

Finding the Fourth Proportional to 81,778.46, 112,854.90 and 45,480.41

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Solution

The fourth proportional to 81,778.46, 112,854.90 and 45,480.41 is: 62,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,778.46 : 112,854.90 = 45,480.41 : x
  2. Step 2: Convert to fraction form
    81,778.46/112,854.90 = 45,480.41/x
  3. Step 3: Cross multiply
    81,778.46x = 112,854.90 × 45,480.41
  4. Step 4: Simplify right side
    81,778.46x = 5,132,687,436.23
  5. Step 5: Solve for x
    x = 5,132,687,436.23/81,778.46
  6. Step 6: Final answer
    x = 62,763.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.