Home / 99,545.49-137,372.96-59,260.65

Finding the Fourth Proportional to 99,545.49, 137,372.96 and 59,260.65

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Solution

The fourth proportional to 99,545.49, 137,372.96 and 59,260.65 is: 81,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,545.49 : 137,372.96 = 59,260.65 : x
  2. Step 2: Convert to fraction form
    99,545.49/137,372.96 = 59,260.65/x
  3. Step 3: Cross multiply
    99,545.49x = 137,372.96 × 59,260.65
  4. Step 4: Simplify right side
    99,545.49x = 8,140,810,535.03
  5. Step 5: Solve for x
    x = 8,140,810,535.03/99,545.49
  6. Step 6: Final answer
    x = 81,779.80

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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.