Home / 81,761.26-112,839.86-45,466.30

Finding the Fourth Proportional to 81,761.26, 112,839.86 and 45,466.30

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Solution

The fourth proportional to 81,761.26, 112,839.86 and 45,466.30 is: 62,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,761.26 : 112,839.86 = 45,466.30 : x
  2. Step 2: Convert to fraction form
    81,761.26/112,839.86 = 45,466.30/x
  3. Step 3: Cross multiply
    81,761.26x = 112,839.86 × 45,466.30
  4. Step 4: Simplify right side
    81,761.26x = 5,130,410,926.72
  5. Step 5: Solve for x
    x = 5,130,410,926.72/81,761.26
  6. Step 6: Final answer
    x = 62,748.68

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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.