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Finding the Fourth Proportional to 99,613.44, 137,468.16 and 54,901.76

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Solution

The fourth proportional to 99,613.44, 137,468.16 and 54,901.76 is: 75,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,613.44 : 137,468.16 = 54,901.76 : x
  2. Step 2: Convert to fraction form
    99,613.44/137,468.16 = 54,901.76/x
  3. Step 3: Cross multiply
    99,613.44x = 137,468.16 × 54,901.76
  4. Step 4: Simplify right side
    99,613.44x = 7,547,243,927.96
  5. Step 5: Solve for x
    x = 7,547,243,927.96/99,613.44
  6. Step 6: Final answer
    x = 75,765.32

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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.