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Finding the Fourth Proportional to 99,695.63, 137,576.17 and 54,983.63

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Solution

The fourth proportional to 99,695.63, 137,576.17 and 54,983.63 is: 75,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.63 : 137,576.17 = 54,983.63 : x
  2. Step 2: Convert to fraction form
    99,695.63/137,576.17 = 54,983.63/x
  3. Step 3: Cross multiply
    99,695.63x = 137,576.17 × 54,983.63
  4. Step 4: Simplify right side
    99,695.63x = 7,564,437,640.77
  5. Step 5: Solve for x
    x = 7,564,437,640.77/99,695.63
  6. Step 6: Final answer
    x = 75,875.32

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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.