Home / 76,990.17-114,773.58-75,776.90

Finding the Fourth Proportional to 76,990.17, 114,773.58 and 75,776.90

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Solution

The fourth proportional to 76,990.17, 114,773.58 and 75,776.90 is: 112,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,990.17 : 114,773.58 = 75,776.90 : x
  2. Step 2: Convert to fraction form
    76,990.17/114,773.58 = 75,776.90/x
  3. Step 3: Cross multiply
    76,990.17x = 114,773.58 × 75,776.90
  4. Step 4: Simplify right side
    76,990.17x = 8,697,185,520.43
  5. Step 5: Solve for x
    x = 8,697,185,520.43/76,990.17
  6. Step 6: Final answer
    x = 112,964.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.