Home / 83,658.65-115,449.07-45,418.19

Finding the Fourth Proportional to 83,658.65, 115,449.07 and 45,418.19

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Solution

The fourth proportional to 83,658.65, 115,449.07 and 45,418.19 is: 62,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,658.65 : 115,449.07 = 45,418.19 : x
  2. Step 2: Convert to fraction form
    83,658.65/115,449.07 = 45,418.19/x
  3. Step 3: Cross multiply
    83,658.65x = 115,449.07 × 45,418.19
  4. Step 4: Simplify right side
    83,658.65x = 5,243,488,292.79
  5. Step 5: Solve for x
    x = 5,243,488,292.79/83,658.65
  6. Step 6: Final answer
    x = 62,677.18

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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.