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Finding the Fourth Proportional to 84,342.92, 126,510.06 and 25,179.08

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Solution

The fourth proportional to 84,342.92, 126,510.06 and 25,179.08 is: 37,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,342.92 : 126,510.06 = 25,179.08 : x
  2. Step 2: Convert to fraction form
    84,342.92/126,510.06 = 25,179.08/x
  3. Step 3: Cross multiply
    84,342.92x = 126,510.06 × 25,179.08
  4. Step 4: Simplify right side
    84,342.92x = 3,185,406,921.54
  5. Step 5: Solve for x
    x = 3,185,406,921.54/84,342.92
  6. Step 6: Final answer
    x = 37,767.33

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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.