Home / 77,123.48-115,701-32,750.04

Finding the Fourth Proportional to 77,123.48, 115,701 and 32,750.04

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Solution

The fourth proportional to 77,123.48, 115,701 and 32,750.04 is: 49,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,123.48 : 115,701 = 32,750.04 : x
  2. Step 2: Convert to fraction form
    77,123.48/115,701 = 32,750.04/x
  3. Step 3: Cross multiply
    77,123.48x = 115,701 × 32,750.04
  4. Step 4: Simplify right side
    77,123.48x = 3,789,212,378.04
  5. Step 5: Solve for x
    x = 3,789,212,378.04/77,123.48
  6. Step 6: Final answer
    x = 49,131.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.