Home / 81,278.05-112,167.94-45,468.66

Finding the Fourth Proportional to 81,278.05, 112,167.94 and 45,468.66

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Solution

The fourth proportional to 81,278.05, 112,167.94 and 45,468.66 is: 62,749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,278.05 : 112,167.94 = 45,468.66 : x
  2. Step 2: Convert to fraction form
    81,278.05/112,167.94 = 45,468.66/x
  3. Step 3: Cross multiply
    81,278.05x = 112,167.94 × 45,468.66
  4. Step 4: Simplify right side
    81,278.05x = 5,100,125,926.76
  5. Step 5: Solve for x
    x = 5,100,125,926.76/81,278.05
  6. Step 6: Final answer
    x = 62,749.12

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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.