Home / 65,617.98-90,517.41-54,220.07

Finding the Fourth Proportional to 65,617.98, 90,517.41 and 54,220.07

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Solution

The fourth proportional to 65,617.98, 90,517.41 and 54,220.07 is: 74,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,617.98 : 90,517.41 = 54,220.07 : x
  2. Step 2: Convert to fraction form
    65,617.98/90,517.41 = 54,220.07/x
  3. Step 3: Cross multiply
    65,617.98x = 90,517.41 × 54,220.07
  4. Step 4: Simplify right side
    65,617.98x = 4,907,859,853.83
  5. Step 5: Solve for x
    x = 4,907,859,853.83/65,617.98
  6. Step 6: Final answer
    x = 74,794.44

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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.