Home / 84,131.28-126,274.68-42,607.44

Finding the Fourth Proportional to 84,131.28, 126,274.68 and 42,607.44

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Solution

The fourth proportional to 84,131.28, 126,274.68 and 42,607.44 is: 63,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,131.28 : 126,274.68 = 42,607.44 : x
  2. Step 2: Convert to fraction form
    84,131.28/126,274.68 = 42,607.44/x
  3. Step 3: Cross multiply
    84,131.28x = 126,274.68 × 42,607.44
  4. Step 4: Simplify right side
    84,131.28x = 5,380,240,851.62
  5. Step 5: Solve for x
    x = 5,380,240,851.62/84,131.28
  6. Step 6: Final answer
    x = 63,950.54

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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.