Home / 83,371.21-115,052.03-45,645.19

Finding the Fourth Proportional to 83,371.21, 115,052.03 and 45,645.19

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Solution

The fourth proportional to 83,371.21, 115,052.03 and 45,645.19 is: 62,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,371.21 : 115,052.03 = 45,645.19 : x
  2. Step 2: Convert to fraction form
    83,371.21/115,052.03 = 45,645.19/x
  3. Step 3: Cross multiply
    83,371.21x = 115,052.03 × 45,645.19
  4. Step 4: Simplify right side
    83,371.21x = 5,251,571,424.55
  5. Step 5: Solve for x
    x = 5,251,571,424.55/83,371.21
  6. Step 6: Final answer
    x = 62,990.23

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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.