Home / 65,531.25-90,432.30-36,855.66

Finding the Fourth Proportional to 65,531.25, 90,432.30 and 36,855.66

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Solution

The fourth proportional to 65,531.25, 90,432.30 and 36,855.66 is: 50,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,531.25 : 90,432.30 = 36,855.66 : x
  2. Step 2: Convert to fraction form
    65,531.25/90,432.30 = 36,855.66/x
  3. Step 3: Cross multiply
    65,531.25x = 90,432.30 × 36,855.66
  4. Step 4: Simplify right side
    65,531.25x = 3,332,941,863.15
  5. Step 5: Solve for x
    x = 3,332,941,863.15/65,531.25
  6. Step 6: Final answer
    x = 50,860.34

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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.