Home / 56,743.86-78,306.66-31,249.38

Finding the Fourth Proportional to 56,743.86, 78,306.66 and 31,249.38

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Solution

The fourth proportional to 56,743.86, 78,306.66 and 31,249.38 is: 43,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,743.86 : 78,306.66 = 31,249.38 : x
  2. Step 2: Convert to fraction form
    56,743.86/78,306.66 = 31,249.38/x
  3. Step 3: Cross multiply
    56,743.86x = 78,306.66 × 31,249.38
  4. Step 4: Simplify right side
    56,743.86x = 2,447,034,574.87
  5. Step 5: Solve for x
    x = 2,447,034,574.87/56,743.86
  6. Step 6: Final answer
    x = 43,124.22

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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.