Home / 63,018.17-86,961.79-39,144.36

Finding the Fourth Proportional to 63,018.17, 86,961.79 and 39,144.36

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Solution

The fourth proportional to 63,018.17, 86,961.79 and 39,144.36 is: 54,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018.17 : 86,961.79 = 39,144.36 : x
  2. Step 2: Convert to fraction form
    63,018.17/86,961.79 = 39,144.36/x
  3. Step 3: Cross multiply
    63,018.17x = 86,961.79 × 39,144.36
  4. Step 4: Simplify right side
    63,018.17x = 3,404,063,418.28
  5. Step 5: Solve for x
    x = 3,404,063,418.28/63,018.17
  6. Step 6: Final answer
    x = 54,017.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.