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Finding the Fourth Proportional to 84,943.92, 127,415.16 and 21,763.92

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Solution

The fourth proportional to 84,943.92, 127,415.16 and 21,763.92 is: 32,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,943.92 : 127,415.16 = 21,763.92 : x
  2. Step 2: Convert to fraction form
    84,943.92/127,415.16 = 21,763.92/x
  3. Step 3: Cross multiply
    84,943.92x = 127,415.16 × 21,763.92
  4. Step 4: Simplify right side
    84,943.92x = 2,773,053,349.03
  5. Step 5: Solve for x
    x = 2,773,053,349.03/84,943.92
  6. Step 6: Final answer
    x = 32,645.70

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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.