Home / 83,730.20-115,549.76-45,489.76

Finding the Fourth Proportional to 83,730.20, 115,549.76 and 45,489.76

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Solution

The fourth proportional to 83,730.20, 115,549.76 and 45,489.76 is: 62,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,730.20 : 115,549.76 = 45,489.76 : x
  2. Step 2: Convert to fraction form
    83,730.20/115,549.76 = 45,489.76/x
  3. Step 3: Cross multiply
    83,730.20x = 115,549.76 × 45,489.76
  4. Step 4: Simplify right side
    83,730.20x = 5,256,330,850.46
  5. Step 5: Solve for x
    x = 5,256,330,850.46/83,730.20
  6. Step 6: Final answer
    x = 62,777.00

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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.