Home / 83,730.25-115,549.05-45,490.56

Finding the Fourth Proportional to 83,730.25, 115,549.05 and 45,490.56

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Solution

The fourth proportional to 83,730.25, 115,549.05 and 45,490.56 is: 62,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,730.25 : 115,549.05 = 45,490.56 : x
  2. Step 2: Convert to fraction form
    83,730.25/115,549.05 = 45,490.56/x
  3. Step 3: Cross multiply
    83,730.25x = 115,549.05 × 45,490.56
  4. Step 4: Simplify right side
    83,730.25x = 5,256,390,729.25
  5. Step 5: Solve for x
    x = 5,256,390,729.25/83,730.25
  6. Step 6: Final answer
    x = 62,777.68

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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.