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Finding the Fourth Proportional to 84,347.78, 126,521.69 and 22,018.28

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Solution

The fourth proportional to 84,347.78, 126,521.69 and 22,018.28 is: 33,027.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,347.78 : 126,521.69 = 22,018.28 : x
  2. Step 2: Convert to fraction form
    84,347.78/126,521.69 = 22,018.28/x
  3. Step 3: Cross multiply
    84,347.78x = 126,521.69 × 22,018.28
  4. Step 4: Simplify right side
    84,347.78x = 2,785,789,253.79
  5. Step 5: Solve for x
    x = 2,785,789,253.79/84,347.78
  6. Step 6: Final answer
    x = 33,027.42

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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.