Home / 84,346.10-126,534.54-28,180.88

Finding the Fourth Proportional to 84,346.10, 126,534.54 and 28,180.88

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Solution

The fourth proportional to 84,346.10, 126,534.54 and 28,180.88 is: 42,276.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,346.10 : 126,534.54 = 28,180.88 : x
  2. Step 2: Convert to fraction form
    84,346.10/126,534.54 = 28,180.88/x
  3. Step 3: Cross multiply
    84,346.10x = 126,534.54 × 28,180.88
  4. Step 4: Simplify right side
    84,346.10x = 3,565,854,687.60
  5. Step 5: Solve for x
    x = 3,565,854,687.60/84,346.10
  6. Step 6: Final answer
    x = 42,276.46

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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.