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Finding the Fourth Proportional to 81,573.08, 112,571.10 and 45,763.11

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Solution

The fourth proportional to 81,573.08, 112,571.10 and 45,763.11 is: 63,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,573.08 : 112,571.10 = 45,763.11 : x
  2. Step 2: Convert to fraction form
    81,573.08/112,571.10 = 45,763.11/x
  3. Step 3: Cross multiply
    81,573.08x = 112,571.10 × 45,763.11
  4. Step 4: Simplify right side
    81,573.08x = 5,151,603,632.12
  5. Step 5: Solve for x
    x = 5,151,603,632.12/81,573.08
  6. Step 6: Final answer
    x = 63,153.24

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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.