Home / 80,730.32-121,126.24-36,346.86

Finding the Fourth Proportional to 80,730.32, 121,126.24 and 36,346.86

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Solution

The fourth proportional to 80,730.32, 121,126.24 and 36,346.86 is: 54,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.32 : 121,126.24 = 36,346.86 : x
  2. Step 2: Convert to fraction form
    80,730.32/121,126.24 = 36,346.86/x
  3. Step 3: Cross multiply
    80,730.32x = 121,126.24 × 36,346.86
  4. Step 4: Simplify right side
    80,730.32x = 4,402,558,487.61
  5. Step 5: Solve for x
    x = 4,402,558,487.61/80,730.32
  6. Step 6: Final answer
    x = 54,534.14

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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.