Home / 55,516.65-76,613.85-31,642.80

Finding the Fourth Proportional to 55,516.65, 76,613.85 and 31,642.80

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Solution

The fourth proportional to 55,516.65, 76,613.85 and 31,642.80 is: 43,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,516.65 : 76,613.85 = 31,642.80 : x
  2. Step 2: Convert to fraction form
    55,516.65/76,613.85 = 31,642.80/x
  3. Step 3: Cross multiply
    55,516.65x = 76,613.85 × 31,642.80
  4. Step 4: Simplify right side
    55,516.65x = 2,424,276,732.78
  5. Step 5: Solve for x
    x = 2,424,276,732.78/55,516.65
  6. Step 6: Final answer
    x = 43,667.56

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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.