Home / 78,444.74-108,253.10-42,634.97

Finding the Fourth Proportional to 78,444.74, 108,253.10 and 42,634.97

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Solution

The fourth proportional to 78,444.74, 108,253.10 and 42,634.97 is: 58,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,444.74 : 108,253.10 = 42,634.97 : x
  2. Step 2: Convert to fraction form
    78,444.74/108,253.10 = 42,634.97/x
  3. Step 3: Cross multiply
    78,444.74x = 108,253.10 × 42,634.97
  4. Step 4: Simplify right side
    78,444.74x = 4,615,367,670.91
  5. Step 5: Solve for x
    x = 4,615,367,670.91/78,444.74
  6. Step 6: Final answer
    x = 58,835.91

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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.