Home / 81,074.52-121,626.36-34,331.04

Finding the Fourth Proportional to 81,074.52, 121,626.36 and 34,331.04

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Solution

The fourth proportional to 81,074.52, 121,626.36 and 34,331.04 is: 51,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.52 : 121,626.36 = 34,331.04 : x
  2. Step 2: Convert to fraction form
    81,074.52/121,626.36 = 34,331.04/x
  3. Step 3: Cross multiply
    81,074.52x = 121,626.36 × 34,331.04
  4. Step 4: Simplify right side
    81,074.52x = 4,175,559,430.21
  5. Step 5: Solve for x
    x = 4,175,559,430.21/81,074.52
  6. Step 6: Final answer
    x = 51,502.73

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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.