Home / 56,862.11-78,469.49-31,370.06

Finding the Fourth Proportional to 56,862.11, 78,469.49 and 31,370.06

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Solution

The fourth proportional to 56,862.11, 78,469.49 and 31,370.06 is: 43,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,862.11 : 78,469.49 = 31,370.06 : x
  2. Step 2: Convert to fraction form
    56,862.11/78,469.49 = 31,370.06/x
  3. Step 3: Cross multiply
    56,862.11x = 78,469.49 × 31,370.06
  4. Step 4: Simplify right side
    56,862.11x = 2,461,592,609.47
  5. Step 5: Solve for x
    x = 2,461,592,609.47/56,862.11
  6. Step 6: Final answer
    x = 43,290.56

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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.