Home / 71,949.60-99,247.68-56,008.80

Finding the Fourth Proportional to 71,949.60, 99,247.68 and 56,008.80

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Solution

The fourth proportional to 71,949.60, 99,247.68 and 56,008.80 is: 77,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,949.60 : 99,247.68 = 56,008.80 : x
  2. Step 2: Convert to fraction form
    71,949.60/99,247.68 = 56,008.80/x
  3. Step 3: Cross multiply
    71,949.60x = 99,247.68 × 56,008.80
  4. Step 4: Simplify right side
    71,949.60x = 5,558,743,459.58
  5. Step 5: Solve for x
    x = 5,558,743,459.58/71,949.60
  6. Step 6: Final answer
    x = 77,258.85

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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.