Home / 80,538.26-111,139.74-44,730.57

Finding the Fourth Proportional to 80,538.26, 111,139.74 and 44,730.57

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Solution

The fourth proportional to 80,538.26, 111,139.74 and 44,730.57 is: 61,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,538.26 : 111,139.74 = 44,730.57 : x
  2. Step 2: Convert to fraction form
    80,538.26/111,139.74 = 44,730.57/x
  3. Step 3: Cross multiply
    80,538.26x = 111,139.74 × 44,730.57
  4. Step 4: Simplify right side
    80,538.26x = 4,971,343,503.08
  5. Step 5: Solve for x
    x = 4,971,343,503.08/80,538.26
  6. Step 6: Final answer
    x = 61,726.48

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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.