Home / 83,367.36-115,044.96-45,643.20

Finding the Fourth Proportional to 83,367.36, 115,044.96 and 45,643.20

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Solution

The fourth proportional to 83,367.36, 115,044.96 and 45,643.20 is: 62,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,367.36 : 115,044.96 = 45,643.20 : x
  2. Step 2: Convert to fraction form
    83,367.36/115,044.96 = 45,643.20/x
  3. Step 3: Cross multiply
    83,367.36x = 115,044.96 × 45,643.20
  4. Step 4: Simplify right side
    83,367.36x = 5,251,020,118.27
  5. Step 5: Solve for x
    x = 5,251,020,118.27/83,367.36
  6. Step 6: Final answer
    x = 62,986.52

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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.