Home / 71,150.34-98,182.62-39,318.96

Finding the Fourth Proportional to 71,150.34, 98,182.62 and 39,318.96

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Solution

The fourth proportional to 71,150.34, 98,182.62 and 39,318.96 is: 54,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.34 : 98,182.62 = 39,318.96 : x
  2. Step 2: Convert to fraction form
    71,150.34/98,182.62 = 39,318.96/x
  3. Step 3: Cross multiply
    71,150.34x = 98,182.62 × 39,318.96
  4. Step 4: Simplify right side
    71,150.34x = 3,860,438,508.48
  5. Step 5: Solve for x
    x = 3,860,438,508.48/71,150.34
  6. Step 6: Final answer
    x = 54,257.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.