Home / 80,887.04-121,248-51,326.72

Finding the Fourth Proportional to 80,887.04, 121,248 and 51,326.72

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Solution

The fourth proportional to 80,887.04, 121,248 and 51,326.72 is: 76,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,887.04 : 121,248 = 51,326.72 : x
  2. Step 2: Convert to fraction form
    80,887.04/121,248 = 51,326.72/x
  3. Step 3: Cross multiply
    80,887.04x = 121,248 × 51,326.72
  4. Step 4: Simplify right side
    80,887.04x = 6,223,262,146.56
  5. Step 5: Solve for x
    x = 6,223,262,146.56/80,887.04
  6. Step 6: Final answer
    x = 76,937.69

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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.