Home / 56,995.83-78,613.45-40,003.87

Finding the Fourth Proportional to 56,995.83, 78,613.45 and 40,003.87

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Solution

The fourth proportional to 56,995.83, 78,613.45 and 40,003.87 is: 55,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,995.83 : 78,613.45 = 40,003.87 : x
  2. Step 2: Convert to fraction form
    56,995.83/78,613.45 = 40,003.87/x
  3. Step 3: Cross multiply
    56,995.83x = 78,613.45 × 40,003.87
  4. Step 4: Simplify right side
    56,995.83x = 3,144,842,234.05
  5. Step 5: Solve for x
    x = 3,144,842,234.05/56,995.83
  6. Step 6: Final answer
    x = 55,176.71

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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.