Home / 76,677.86-115,184.46-54,632.90

Finding the Fourth Proportional to 76,677.86, 115,184.46 and 54,632.90

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Solution

The fourth proportional to 76,677.86, 115,184.46 and 54,632.90 is: 82,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,677.86 : 115,184.46 = 54,632.90 : x
  2. Step 2: Convert to fraction form
    76,677.86/115,184.46 = 54,632.90/x
  3. Step 3: Cross multiply
    76,677.86x = 115,184.46 × 54,632.90
  4. Step 4: Simplify right side
    76,677.86x = 6,292,861,577.57
  5. Step 5: Solve for x
    x = 6,292,861,577.57/76,677.86
  6. Step 6: Final answer
    x = 82,068.82

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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.