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Finding the Fourth Proportional to 84,471.84, 126,689.04 and 25,299.72

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Solution

The fourth proportional to 84,471.84, 126,689.04 and 25,299.72 is: 37,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,471.84 : 126,689.04 = 25,299.72 : x
  2. Step 2: Convert to fraction form
    84,471.84/126,689.04 = 25,299.72/x
  3. Step 3: Cross multiply
    84,471.84x = 126,689.04 × 25,299.72
  4. Step 4: Simplify right side
    84,471.84x = 3,205,197,239.07
  5. Step 5: Solve for x
    x = 3,205,197,239.07/84,471.84
  6. Step 6: Final answer
    x = 37,943.97

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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.