Home / 84,586.20-126,707.06-40,078.04

Finding the Fourth Proportional to 84,586.20, 126,707.06 and 40,078.04

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Solution

The fourth proportional to 84,586.20, 126,707.06 and 40,078.04 is: 60,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,586.20 : 126,707.06 = 40,078.04 : x
  2. Step 2: Convert to fraction form
    84,586.20/126,707.06 = 40,078.04/x
  3. Step 3: Cross multiply
    84,586.20x = 126,707.06 × 40,078.04
  4. Step 4: Simplify right side
    84,586.20x = 5,078,170,618.96
  5. Step 5: Solve for x
    x = 5,078,170,618.96/84,586.20
  6. Step 6: Final answer
    x = 60,035.45

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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.