Home / 88,459.20-121,841.28-68,002.24

Finding the Fourth Proportional to 88,459.20, 121,841.28 and 68,002.24

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Solution

The fourth proportional to 88,459.20, 121,841.28 and 68,002.24 is: 93,664.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,459.20 : 121,841.28 = 68,002.24 : x
  2. Step 2: Convert to fraction form
    88,459.20/121,841.28 = 68,002.24/x
  3. Step 3: Cross multiply
    88,459.20x = 121,841.28 × 68,002.24
  4. Step 4: Simplify right side
    88,459.20x = 8,285,479,964.47
  5. Step 5: Solve for x
    x = 8,285,479,964.47/88,459.20
  6. Step 6: Final answer
    x = 93,664.42

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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.