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Finding the Fourth Proportional to 81,173.64, 112,032.42 and 49,352.52

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Solution

The fourth proportional to 81,173.64, 112,032.42 and 49,352.52 is: 68,114.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.64 : 112,032.42 = 49,352.52 : x
  2. Step 2: Convert to fraction form
    81,173.64/112,032.42 = 49,352.52/x
  3. Step 3: Cross multiply
    81,173.64x = 112,032.42 × 49,352.52
  4. Step 4: Simplify right side
    81,173.64x = 5,529,082,248.70
  5. Step 5: Solve for x
    x = 5,529,082,248.70/81,173.64
  6. Step 6: Final answer
    x = 68,114.26

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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.