Home / 83,372.18-115,053.48-45,131.54

Finding the Fourth Proportional to 83,372.18, 115,053.48 and 45,131.54

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Solution

The fourth proportional to 83,372.18, 115,053.48 and 45,131.54 is: 62,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,372.18 : 115,053.48 = 45,131.54 : x
  2. Step 2: Convert to fraction form
    83,372.18/115,053.48 = 45,131.54/x
  3. Step 3: Cross multiply
    83,372.18x = 115,053.48 × 45,131.54
  4. Step 4: Simplify right side
    83,372.18x = 5,192,540,159.49
  5. Step 5: Solve for x
    x = 5,192,540,159.49/83,372.18
  6. Step 6: Final answer
    x = 62,281.45

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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.