Home / 99,589.97-137,432.37-54,268.34

Finding the Fourth Proportional to 99,589.97, 137,432.37 and 54,268.34

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Solution

The fourth proportional to 99,589.97, 137,432.37 and 54,268.34 is: 74,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.97 : 137,432.37 = 54,268.34 : x
  2. Step 2: Convert to fraction form
    99,589.97/137,432.37 = 54,268.34/x
  3. Step 3: Cross multiply
    99,589.97x = 137,432.37 × 54,268.34
  4. Step 4: Simplify right side
    99,589.97x = 7,458,226,582.17
  5. Step 5: Solve for x
    x = 7,458,226,582.17/99,589.97
  6. Step 6: Final answer
    x = 74,889.33

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1.5x scale

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.