Home / 43,615.72-65,720.35-35,891.47

Finding the Fourth Proportional to 43,615.72, 65,720.35 and 35,891.47

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Solution

The fourth proportional to 43,615.72, 65,720.35 and 35,891.47 is: 54,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,615.72 : 65,720.35 = 35,891.47 : x
  2. Step 2: Convert to fraction form
    43,615.72/65,720.35 = 35,891.47/x
  3. Step 3: Cross multiply
    43,615.72x = 65,720.35 × 35,891.47
  4. Step 4: Simplify right side
    43,615.72x = 2,358,799,716.38
  5. Step 5: Solve for x
    x = 2,358,799,716.38/43,615.72
  6. Step 6: Final answer
    x = 54,081.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.