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Finding the Fourth Proportional to 61,144.88, 84,392.04 and 39,661.25

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Solution

The fourth proportional to 61,144.88, 84,392.04 and 39,661.25 is: 54,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,144.88 : 84,392.04 = 39,661.25 : x
  2. Step 2: Convert to fraction form
    61,144.88/84,392.04 = 39,661.25/x
  3. Step 3: Cross multiply
    61,144.88x = 84,392.04 × 39,661.25
  4. Step 4: Simplify right side
    61,144.88x = 3,347,093,700.47
  5. Step 5: Solve for x
    x = 3,347,093,700.47/61,144.88
  6. Step 6: Final answer
    x = 54,740.38

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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.