Home / 84,631.48-126,921.60-25,451.44

Finding the Fourth Proportional to 84,631.48, 126,921.60 and 25,451.44

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Solution

The fourth proportional to 84,631.48, 126,921.60 and 25,451.44 is: 38,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,631.48 : 126,921.60 = 25,451.44 : x
  2. Step 2: Convert to fraction form
    84,631.48/126,921.60 = 25,451.44/x
  3. Step 3: Cross multiply
    84,631.48x = 126,921.60 × 25,451.44
  4. Step 4: Simplify right side
    84,631.48x = 3,230,337,487.10
  5. Step 5: Solve for x
    x = 3,230,337,487.10/84,631.48
  6. Step 6: Final answer
    x = 38,169.46

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1.5x scale

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.