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Finding the Fourth Proportional to 84,481.77, 126,655.00 and 42,340.22

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Solution

The fourth proportional to 84,481.77, 126,655.00 and 42,340.22 is: 63,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,481.77 : 126,655.00 = 42,340.22 : x
  2. Step 2: Convert to fraction form
    84,481.77/126,655.00 = 42,340.22/x
  3. Step 3: Cross multiply
    84,481.77x = 126,655.00 × 42,340.22
  4. Step 4: Simplify right side
    84,481.77x = 5,362,600,616.57
  5. Step 5: Solve for x
    x = 5,362,600,616.57/84,481.77
  6. Step 6: Final answer
    x = 63,476.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.