Home / 72,514.83-100,067.76-40,685.48

Finding the Fourth Proportional to 72,514.83, 100,067.76 and 40,685.48

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Solution

The fourth proportional to 72,514.83, 100,067.76 and 40,685.48 is: 56,144.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,514.83 : 100,067.76 = 40,685.48 : x
  2. Step 2: Convert to fraction form
    72,514.83/100,067.76 = 40,685.48/x
  3. Step 3: Cross multiply
    72,514.83x = 100,067.76 × 40,685.48
  4. Step 4: Simplify right side
    72,514.83x = 4,071,304,347.79
  5. Step 5: Solve for x
    x = 4,071,304,347.79/72,514.83
  6. Step 6: Final answer
    x = 56,144.44

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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.