Home / 81,606.31-112,616.60-45,799.65

Finding the Fourth Proportional to 81,606.31, 112,616.60 and 45,799.65

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Solution

The fourth proportional to 81,606.31, 112,616.60 and 45,799.65 is: 63,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,606.31 : 112,616.60 = 45,799.65 : x
  2. Step 2: Convert to fraction form
    81,606.31/112,616.60 = 45,799.65/x
  3. Step 3: Cross multiply
    81,606.31x = 112,616.60 × 45,799.65
  4. Step 4: Simplify right side
    81,606.31x = 5,157,800,635.19
  5. Step 5: Solve for x
    x = 5,157,800,635.19/81,606.31
  6. Step 6: Final answer
    x = 63,203.46

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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.