Home / 99,927.57-137,900.40-54,605.55

Finding the Fourth Proportional to 99,927.57, 137,900.40 and 54,605.55

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Solution

The fourth proportional to 99,927.57, 137,900.40 and 54,605.55 is: 75,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,927.57 : 137,900.40 = 54,605.55 : x
  2. Step 2: Convert to fraction form
    99,927.57/137,900.40 = 54,605.55/x
  3. Step 3: Cross multiply
    99,927.57x = 137,900.40 × 54,605.55
  4. Step 4: Simplify right side
    99,927.57x = 7,530,127,187.22
  5. Step 5: Solve for x
    x = 7,530,127,187.22/99,927.57
  6. Step 6: Final answer
    x = 75,355.86

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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.