Home / 71,031.13-98,022.76-39,199.80

Finding the Fourth Proportional to 71,031.13, 98,022.76 and 39,199.80

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Solution

The fourth proportional to 71,031.13, 98,022.76 and 39,199.80 is: 54,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,031.13 : 98,022.76 = 39,199.80 : x
  2. Step 2: Convert to fraction form
    71,031.13/98,022.76 = 39,199.80/x
  3. Step 3: Cross multiply
    71,031.13x = 98,022.76 × 39,199.80
  4. Step 4: Simplify right side
    71,031.13x = 3,842,472,587.45
  5. Step 5: Solve for x
    x = 3,842,472,587.45/71,031.13
  6. Step 6: Final answer
    x = 54,095.61

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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.