Home / 99,909.45-137,873.41-54,586.46

Finding the Fourth Proportional to 99,909.45, 137,873.41 and 54,586.46

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Solution

The fourth proportional to 99,909.45, 137,873.41 and 54,586.46 is: 75,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,909.45 : 137,873.41 = 54,586.46 : x
  2. Step 2: Convert to fraction form
    99,909.45/137,873.41 = 54,586.46/x
  3. Step 3: Cross multiply
    99,909.45x = 137,873.41 × 54,586.46
  4. Step 4: Simplify right side
    99,909.45x = 7,526,020,554.20
  5. Step 5: Solve for x
    x = 7,526,020,554.20/99,909.45
  6. Step 6: Final answer
    x = 75,328.42

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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.