Home / 81,560.20-112,557.54-45,761.56

Finding the Fourth Proportional to 81,560.20, 112,557.54 and 45,761.56

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Solution

The fourth proportional to 81,560.20, 112,557.54 and 45,761.56 is: 63,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,560.20 : 112,557.54 = 45,761.56 : x
  2. Step 2: Convert to fraction form
    81,560.20/112,557.54 = 45,761.56/x
  3. Step 3: Cross multiply
    81,560.20x = 112,557.54 × 45,761.56
  4. Step 4: Simplify right side
    81,560.20x = 5,150,808,620.16
  5. Step 5: Solve for x
    x = 5,150,808,620.16/81,560.20
  6. Step 6: Final answer
    x = 63,153.46

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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.