Home / 99,699.20-137,586.56-54,377.44

Finding the Fourth Proportional to 99,699.20, 137,586.56 and 54,377.44

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Solution

The fourth proportional to 99,699.20, 137,586.56 and 54,377.44 is: 75,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699.20 : 137,586.56 = 54,377.44 : x
  2. Step 2: Convert to fraction form
    99,699.20/137,586.56 = 54,377.44/x
  3. Step 3: Cross multiply
    99,699.20x = 137,586.56 × 54,377.44
  4. Step 4: Simplify right side
    99,699.20x = 7,481,604,911.21
  5. Step 5: Solve for x
    x = 7,481,604,911.21/99,699.20
  6. Step 6: Final answer
    x = 75,041.77

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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.