Home / 99,374.90-137,139.62-54,055.31

Finding the Fourth Proportional to 99,374.90, 137,139.62 and 54,055.31

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Solution

The fourth proportional to 99,374.90, 137,139.62 and 54,055.31 is: 74,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,374.90 : 137,139.62 = 54,055.31 : x
  2. Step 2: Convert to fraction form
    99,374.90/137,139.62 = 54,055.31/x
  3. Step 3: Cross multiply
    99,374.90x = 137,139.62 × 54,055.31
  4. Step 4: Simplify right side
    99,374.90x = 7,413,123,986.68
  5. Step 5: Solve for x
    x = 7,413,123,986.68/99,374.90
  6. Step 6: Final answer
    x = 74,597.55

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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.