Home / 78,324.30-108,089.45-42,514.22

Finding the Fourth Proportional to 78,324.30, 108,089.45 and 42,514.22

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Solution

The fourth proportional to 78,324.30, 108,089.45 and 42,514.22 is: 58,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.30 : 108,089.45 = 42,514.22 : x
  2. Step 2: Convert to fraction form
    78,324.30/108,089.45 = 42,514.22/x
  3. Step 3: Cross multiply
    78,324.30x = 108,089.45 × 42,514.22
  4. Step 4: Simplify right side
    78,324.30x = 4,595,338,656.98
  5. Step 5: Solve for x
    x = 4,595,338,656.98/78,324.30
  6. Step 6: Final answer
    x = 58,670.66

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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.