Home / 99,545.85-137,363.31-61,299.27

Finding the Fourth Proportional to 99,545.85, 137,363.31 and 61,299.27

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Solution

The fourth proportional to 99,545.85, 137,363.31 and 61,299.27 is: 84,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,545.85 : 137,363.31 = 61,299.27 : x
  2. Step 2: Convert to fraction form
    99,545.85/137,363.31 = 61,299.27/x
  3. Step 3: Cross multiply
    99,545.85x = 137,363.31 × 61,299.27
  4. Step 4: Simplify right side
    99,545.85x = 8,420,270,627.78
  5. Step 5: Solve for x
    x = 8,420,270,627.78/99,545.85
  6. Step 6: Final answer
    x = 84,586.86

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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.