Home / 84,721.70-127,083.45-25,557.88

Finding the Fourth Proportional to 84,721.70, 127,083.45 and 25,557.88

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Solution

The fourth proportional to 84,721.70, 127,083.45 and 25,557.88 is: 38,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.70 : 127,083.45 = 25,557.88 : x
  2. Step 2: Convert to fraction form
    84,721.70/127,083.45 = 25,557.88/x
  3. Step 3: Cross multiply
    84,721.70x = 127,083.45 × 25,557.88
  4. Step 4: Simplify right side
    84,721.70x = 3,247,983,343.22
  5. Step 5: Solve for x
    x = 3,247,983,343.22/84,721.70
  6. Step 6: Final answer
    x = 38,337.09

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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.