Home / 99,589.77-137,432.13-54,268.08

Finding the Fourth Proportional to 99,589.77, 137,432.13 and 54,268.08

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Solution

The fourth proportional to 99,589.77, 137,432.13 and 54,268.08 is: 74,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.77 : 137,432.13 = 54,268.08 : x
  2. Step 2: Convert to fraction form
    99,589.77/137,432.13 = 54,268.08/x
  3. Step 3: Cross multiply
    99,589.77x = 137,432.13 × 54,268.08
  4. Step 4: Simplify right side
    99,589.77x = 7,458,177,825.41
  5. Step 5: Solve for x
    x = 7,458,177,825.41/99,589.77
  6. Step 6: Final answer
    x = 74,889.00

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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.