Home / 99,859.32-137,806.11-54,537.66

Finding the Fourth Proportional to 99,859.32, 137,806.11 and 54,537.66

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Solution

The fourth proportional to 99,859.32, 137,806.11 and 54,537.66 is: 75,262.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,859.32 : 137,806.11 = 54,537.66 : x
  2. Step 2: Convert to fraction form
    99,859.32/137,806.11 = 54,537.66/x
  3. Step 3: Cross multiply
    99,859.32x = 137,806.11 × 54,537.66
  4. Step 4: Simplify right side
    99,859.32x = 7,515,622,773.10
  5. Step 5: Solve for x
    x = 7,515,622,773.10/99,859.32
  6. Step 6: Final answer
    x = 75,262.11

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1.5x scale

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.