Home / 83,455.24-115,168.68-45,730.84

Finding the Fourth Proportional to 83,455.24, 115,168.68 and 45,730.84

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Solution

The fourth proportional to 83,455.24, 115,168.68 and 45,730.84 is: 63,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,455.24 : 115,168.68 = 45,730.84 : x
  2. Step 2: Convert to fraction form
    83,455.24/115,168.68 = 45,730.84/x
  3. Step 3: Cross multiply
    83,455.24x = 115,168.68 × 45,730.84
  4. Step 4: Simplify right side
    83,455.24x = 5,266,760,478.09
  5. Step 5: Solve for x
    x = 5,266,760,478.09/83,455.24
  6. Step 6: Final answer
    x = 63,108.81

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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.