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Finding the Fourth Proportional to 99,590.16, 137,432.65 and 54,268.46

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Solution

The fourth proportional to 99,590.16, 137,432.65 and 54,268.46 is: 74,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,590.16 : 137,432.65 = 54,268.46 : x
  2. Step 2: Convert to fraction form
    99,590.16/137,432.65 = 54,268.46/x
  3. Step 3: Cross multiply
    99,590.16x = 137,432.65 × 54,268.46
  4. Step 4: Simplify right side
    99,590.16x = 7,458,258,269.22
  5. Step 5: Solve for x
    x = 7,458,258,269.22/99,590.16
  6. Step 6: Final answer
    x = 74,889.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.