Home / 71,311.91-98,406.68-39,040.34

Finding the Fourth Proportional to 71,311.91, 98,406.68 and 39,040.34

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Solution

The fourth proportional to 71,311.91, 98,406.68 and 39,040.34 is: 53,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,311.91 : 98,406.68 = 39,040.34 : x
  2. Step 2: Convert to fraction form
    71,311.91/98,406.68 = 39,040.34/x
  3. Step 3: Cross multiply
    71,311.91x = 98,406.68 × 39,040.34
  4. Step 4: Simplify right side
    71,311.91x = 3,841,830,245.47
  5. Step 5: Solve for x
    x = 3,841,830,245.47/71,311.91
  6. Step 6: Final answer
    x = 53,873.61

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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.