Home / 78,324.26-108,089.42-42,514.16

Finding the Fourth Proportional to 78,324.26, 108,089.42 and 42,514.16

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Solution

The fourth proportional to 78,324.26, 108,089.42 and 42,514.16 is: 58,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.26 : 108,089.42 = 42,514.16 : x
  2. Step 2: Convert to fraction form
    78,324.26/108,089.42 = 42,514.16/x
  3. Step 3: Cross multiply
    78,324.26x = 108,089.42 × 42,514.16
  4. Step 4: Simplify right side
    78,324.26x = 4,595,330,143.17
  5. Step 5: Solve for x
    x = 4,595,330,143.17/78,324.26
  6. Step 6: Final answer
    x = 58,670.59

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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.