Home / 55,691.64-76,856.22-30,543.48

Finding the Fourth Proportional to 55,691.64, 76,856.22 and 30,543.48

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Solution

The fourth proportional to 55,691.64, 76,856.22 and 30,543.48 is: 42,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691.64 : 76,856.22 = 30,543.48 : x
  2. Step 2: Convert to fraction form
    55,691.64/76,856.22 = 30,543.48/x
  3. Step 3: Cross multiply
    55,691.64x = 76,856.22 × 30,543.48
  4. Step 4: Simplify right side
    55,691.64x = 2,347,456,418.45
  5. Step 5: Solve for x
    x = 2,347,456,418.45/55,691.64
  6. Step 6: Final answer
    x = 42,150.97

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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.