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Finding the Fourth Proportional to 99,589.66, 137,431.96 and 54,267.96

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Solution

The fourth proportional to 99,589.66, 137,431.96 and 54,267.96 is: 74,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.66 : 137,431.96 = 54,267.96 : x
  2. Step 2: Convert to fraction form
    99,589.66/137,431.96 = 54,267.96/x
  3. Step 3: Cross multiply
    99,589.66x = 137,431.96 × 54,267.96
  4. Step 4: Simplify right side
    99,589.66x = 7,458,152,108.00
  5. Step 5: Solve for x
    x = 7,458,152,108.00/99,589.66
  6. Step 6: Final answer
    x = 74,888.82

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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.