Home / 67,455.60-101,179.68-20,708.46

Finding the Fourth Proportional to 67,455.60, 101,179.68 and 20,708.46

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Solution

The fourth proportional to 67,455.60, 101,179.68 and 20,708.46 is: 31,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,455.60 : 101,179.68 = 20,708.46 : x
  2. Step 2: Convert to fraction form
    67,455.60/101,179.68 = 20,708.46/x
  3. Step 3: Cross multiply
    67,455.60x = 101,179.68 × 20,708.46
  4. Step 4: Simplify right side
    67,455.60x = 2,095,275,356.09
  5. Step 5: Solve for x
    x = 2,095,275,356.09/67,455.60
  6. Step 6: Final answer
    x = 31,061.55

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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.