Home / 81,385.97-112,307.19-45,084.96

Finding the Fourth Proportional to 81,385.97, 112,307.19 and 45,084.96

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Solution

The fourth proportional to 81,385.97, 112,307.19 and 45,084.96 is: 62,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,385.97 : 112,307.19 = 45,084.96 : x
  2. Step 2: Convert to fraction form
    81,385.97/112,307.19 = 45,084.96/x
  3. Step 3: Cross multiply
    81,385.97x = 112,307.19 × 45,084.96
  4. Step 4: Simplify right side
    81,385.97x = 5,063,365,168.86
  5. Step 5: Solve for x
    x = 5,063,365,168.86/81,385.97
  6. Step 6: Final answer
    x = 62,214.23

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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.