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Finding the Fourth Proportional to 81,497, 112,466.12 and 45,201.04

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Solution

The fourth proportional to 81,497, 112,466.12 and 45,201.04 is: 62,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,497 : 112,466.12 = 45,201.04 : x
  2. Step 2: Convert to fraction form
    81,497/112,466.12 = 45,201.04/x
  3. Step 3: Cross multiply
    81,497x = 112,466.12 × 45,201.04
  4. Step 4: Simplify right side
    81,497x = 5,083,585,588.76
  5. Step 5: Solve for x
    x = 5,083,585,588.76/81,497
  6. Step 6: Final answer
    x = 62,377.58

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1.5x scale

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.