Home / 99,493.54-137,304.45-54,173.28

Finding the Fourth Proportional to 99,493.54, 137,304.45 and 54,173.28

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Solution

The fourth proportional to 99,493.54, 137,304.45 and 54,173.28 is: 74,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.54 : 137,304.45 = 54,173.28 : x
  2. Step 2: Convert to fraction form
    99,493.54/137,304.45 = 54,173.28/x
  3. Step 3: Cross multiply
    99,493.54x = 137,304.45 × 54,173.28
  4. Step 4: Simplify right side
    99,493.54x = 7,438,232,415.10
  5. Step 5: Solve for x
    x = 7,438,232,415.10/99,493.54
  6. Step 6: Final answer
    x = 74,760.96

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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.