Home / 78,535.17-108,329.94-68,487.73

Finding the Fourth Proportional to 78,535.17, 108,329.94 and 68,487.73

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Solution

The fourth proportional to 78,535.17, 108,329.94 and 68,487.73 is: 94,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,535.17 : 108,329.94 = 68,487.73 : x
  2. Step 2: Convert to fraction form
    78,535.17/108,329.94 = 68,487.73/x
  3. Step 3: Cross multiply
    78,535.17x = 108,329.94 × 68,487.73
  4. Step 4: Simplify right side
    78,535.17x = 7,419,271,945.46
  5. Step 5: Solve for x
    x = 7,419,271,945.46/78,535.17
  6. Step 6: Final answer
    x = 94,470.69

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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.