Home / 83,402.40-115,094.82-45,161.56

Finding the Fourth Proportional to 83,402.40, 115,094.82 and 45,161.56

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Solution

The fourth proportional to 83,402.40, 115,094.82 and 45,161.56 is: 62,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,402.40 : 115,094.82 = 45,161.56 : x
  2. Step 2: Convert to fraction form
    83,402.40/115,094.82 = 45,161.56/x
  3. Step 3: Cross multiply
    83,402.40x = 115,094.82 × 45,161.56
  4. Step 4: Simplify right side
    83,402.40x = 5,197,861,619.12
  5. Step 5: Solve for x
    x = 5,197,861,619.12/83,402.40
  6. Step 6: Final answer
    x = 62,322.69

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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.