Home / 83,709.21-115,519.57-45,469.13

Finding the Fourth Proportional to 83,709.21, 115,519.57 and 45,469.13

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Solution

The fourth proportional to 83,709.21, 115,519.57 and 45,469.13 is: 62,747.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,709.21 : 115,519.57 = 45,469.13 : x
  2. Step 2: Convert to fraction form
    83,709.21/115,519.57 = 45,469.13/x
  3. Step 3: Cross multiply
    83,709.21x = 115,519.57 × 45,469.13
  4. Step 4: Simplify right side
    83,709.21x = 5,252,574,345.87
  5. Step 5: Solve for x
    x = 5,252,574,345.87/83,709.21
  6. Step 6: Final answer
    x = 62,747.87

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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.