Home / 56,668.66-78,209.06-31,177.13

Finding the Fourth Proportional to 56,668.66, 78,209.06 and 31,177.13

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Solution

The fourth proportional to 56,668.66, 78,209.06 and 31,177.13 is: 43,027.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.66 : 78,209.06 = 31,177.13 : x
  2. Step 2: Convert to fraction form
    56,668.66/78,209.06 = 31,177.13/x
  3. Step 3: Cross multiply
    56,668.66x = 78,209.06 × 31,177.13
  4. Step 4: Simplify right side
    56,668.66x = 2,438,333,923.79
  5. Step 5: Solve for x
    x = 2,438,333,923.79/56,668.66
  6. Step 6: Final answer
    x = 43,027.91

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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.