Home / 99,312.24-137,049.24-53,991.36

Finding the Fourth Proportional to 99,312.24, 137,049.24 and 53,991.36

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Solution

The fourth proportional to 99,312.24, 137,049.24 and 53,991.36 is: 74,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,312.24 : 137,049.24 = 53,991.36 : x
  2. Step 2: Convert to fraction form
    99,312.24/137,049.24 = 53,991.36/x
  3. Step 3: Cross multiply
    99,312.24x = 137,049.24 × 53,991.36
  4. Step 4: Simplify right side
    99,312.24x = 7,399,474,854.57
  5. Step 5: Solve for x
    x = 7,399,474,854.57/99,312.24
  6. Step 6: Final answer
    x = 74,507.18

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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.