Home / 99,589.65-137,431.13-54,268.53

Finding the Fourth Proportional to 99,589.65, 137,431.13 and 54,268.53

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Solution

The fourth proportional to 99,589.65, 137,431.13 and 54,268.53 is: 74,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.65 : 137,431.13 = 54,268.53 : x
  2. Step 2: Convert to fraction form
    99,589.65/137,431.13 = 54,268.53/x
  3. Step 3: Cross multiply
    99,589.65x = 137,431.13 × 54,268.53
  4. Step 4: Simplify right side
    99,589.65x = 7,458,185,130.00
  5. Step 5: Solve for x
    x = 7,458,185,130.00/99,589.65
  6. Step 6: Final answer
    x = 74,889.16

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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.