Home / 99,971.40-137,964.24-54,652.41

Finding the Fourth Proportional to 99,971.40, 137,964.24 and 54,652.41

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Solution

The fourth proportional to 99,971.40, 137,964.24 and 54,652.41 is: 75,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,971.40 : 137,964.24 = 54,652.41 : x
  2. Step 2: Convert to fraction form
    99,971.40/137,964.24 = 54,652.41/x
  3. Step 3: Cross multiply
    99,971.40x = 137,964.24 × 54,652.41
  4. Step 4: Simplify right side
    99,971.40x = 7,540,078,209.82
  5. Step 5: Solve for x
    x = 7,540,078,209.82/99,971.40
  6. Step 6: Final answer
    x = 75,422.35

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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.