Home / 80,823.22-111,531.81-45,012.58

Finding the Fourth Proportional to 80,823.22, 111,531.81 and 45,012.58

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Solution

The fourth proportional to 80,823.22, 111,531.81 and 45,012.58 is: 62,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,823.22 : 111,531.81 = 45,012.58 : x
  2. Step 2: Convert to fraction form
    80,823.22/111,531.81 = 45,012.58/x
  3. Step 3: Cross multiply
    80,823.22x = 111,531.81 × 45,012.58
  4. Step 4: Simplify right side
    80,823.22x = 5,020,334,520.17
  5. Step 5: Solve for x
    x = 5,020,334,520.17/80,823.22
  6. Step 6: Final answer
    x = 62,115.00

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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.