Home / 78,512.22-108,304.77-54,597.36

Finding the Fourth Proportional to 78,512.22, 108,304.77 and 54,597.36

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Solution

The fourth proportional to 78,512.22, 108,304.77 and 54,597.36 is: 75,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,512.22 : 108,304.77 = 54,597.36 : x
  2. Step 2: Convert to fraction form
    78,512.22/108,304.77 = 54,597.36/x
  3. Step 3: Cross multiply
    78,512.22x = 108,304.77 × 54,597.36
  4. Step 4: Simplify right side
    78,512.22x = 5,913,154,517.41
  5. Step 5: Solve for x
    x = 5,913,154,517.41/78,512.22
  6. Step 6: Final answer
    x = 75,315.08

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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.