Home / 71,143.91-98,177.63-39,313.34

Finding the Fourth Proportional to 71,143.91, 98,177.63 and 39,313.34

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Solution

The fourth proportional to 71,143.91, 98,177.63 and 39,313.34 is: 54,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,143.91 : 98,177.63 = 39,313.34 : x
  2. Step 2: Convert to fraction form
    71,143.91/98,177.63 = 39,313.34/x
  3. Step 3: Cross multiply
    71,143.91x = 98,177.63 × 39,313.34
  4. Step 4: Simplify right side
    71,143.91x = 3,859,690,548.58
  5. Step 5: Solve for x
    x = 3,859,690,548.58/71,143.91
  6. Step 6: Final answer
    x = 54,251.88

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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.