Home / 84,338.62-126,466.58-28,159.46

Finding the Fourth Proportional to 84,338.62, 126,466.58 and 28,159.46

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Solution

The fourth proportional to 84,338.62, 126,466.58 and 28,159.46 is: 42,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,338.62 : 126,466.58 = 28,159.46 : x
  2. Step 2: Convert to fraction form
    84,338.62/126,466.58 = 28,159.46/x
  3. Step 3: Cross multiply
    84,338.62x = 126,466.58 × 28,159.46
  4. Step 4: Simplify right side
    84,338.62x = 3,561,230,600.85
  5. Step 5: Solve for x
    x = 3,561,230,600.85/84,338.62
  6. Step 6: Final answer
    x = 42,225.38

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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.