Home / 83,538.82-115,272.95-47,731.15

Finding the Fourth Proportional to 83,538.82, 115,272.95 and 47,731.15

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Solution

The fourth proportional to 83,538.82, 115,272.95 and 47,731.15 is: 65,862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,538.82 : 115,272.95 = 47,731.15 : x
  2. Step 2: Convert to fraction form
    83,538.82/115,272.95 = 47,731.15/x
  3. Step 3: Cross multiply
    83,538.82x = 115,272.95 × 47,731.15
  4. Step 4: Simplify right side
    83,538.82x = 5,502,109,652.37
  5. Step 5: Solve for x
    x = 5,502,109,652.37/83,538.82
  6. Step 6: Final answer
    x = 65,862.91

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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.