Home / 85,514.49-118,042.92-76,546.17

Finding the Fourth Proportional to 85,514.49, 118,042.92 and 76,546.17

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Solution

The fourth proportional to 85,514.49, 118,042.92 and 76,546.17 is: 105,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.49 : 118,042.92 = 76,546.17 : x
  2. Step 2: Convert to fraction form
    85,514.49/118,042.92 = 76,546.17/x
  3. Step 3: Cross multiply
    85,514.49x = 118,042.92 × 76,546.17
  4. Step 4: Simplify right side
    85,514.49x = 9,035,733,421.62
  5. Step 5: Solve for x
    x = 9,035,733,421.62/85,514.49
  6. Step 6: Final answer
    x = 105,663.19

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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.