Home / 84,424.32-126,573.56-28,231.20

Finding the Fourth Proportional to 84,424.32, 126,573.56 and 28,231.20

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Solution

The fourth proportional to 84,424.32, 126,573.56 and 28,231.20 is: 42,325.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,424.32 : 126,573.56 = 28,231.20 : x
  2. Step 2: Convert to fraction form
    84,424.32/126,573.56 = 28,231.20/x
  3. Step 3: Cross multiply
    84,424.32x = 126,573.56 × 28,231.20
  4. Step 4: Simplify right side
    84,424.32x = 3,573,323,487.07
  5. Step 5: Solve for x
    x = 3,573,323,487.07/84,424.32
  6. Step 6: Final answer
    x = 42,325.76

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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.