Home / 83,475.68-115,193.76-45,749.12

Finding the Fourth Proportional to 83,475.68, 115,193.76 and 45,749.12

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Solution

The fourth proportional to 83,475.68, 115,193.76 and 45,749.12 is: 63,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,475.68 : 115,193.76 = 45,749.12 : x
  2. Step 2: Convert to fraction form
    83,475.68/115,193.76 = 45,749.12/x
  3. Step 3: Cross multiply
    83,475.68x = 115,193.76 × 45,749.12
  4. Step 4: Simplify right side
    83,475.68x = 5,270,013,149.49
  5. Step 5: Solve for x
    x = 5,270,013,149.49/83,475.68
  6. Step 6: Final answer
    x = 63,132.32

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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.