Home / 85,238.11-127,852.56-26,073.78

Finding the Fourth Proportional to 85,238.11, 127,852.56 and 26,073.78

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Solution

The fourth proportional to 85,238.11, 127,852.56 and 26,073.78 is: 39,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,238.11 : 127,852.56 = 26,073.78 : x
  2. Step 2: Convert to fraction form
    85,238.11/127,852.56 = 26,073.78/x
  3. Step 3: Cross multiply
    85,238.11x = 127,852.56 × 26,073.78
  4. Step 4: Simplify right side
    85,238.11x = 3,333,599,521.88
  5. Step 5: Solve for x
    x = 3,333,599,521.88/85,238.11
  6. Step 6: Final answer
    x = 39,109.26

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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.