Home / 65,826.09-90,839.88-35,611.45

Finding the Fourth Proportional to 65,826.09, 90,839.88 and 35,611.45

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Solution

The fourth proportional to 65,826.09, 90,839.88 and 35,611.45 is: 49,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,826.09 : 90,839.88 = 35,611.45 : x
  2. Step 2: Convert to fraction form
    65,826.09/90,839.88 = 35,611.45/x
  3. Step 3: Cross multiply
    65,826.09x = 90,839.88 × 35,611.45
  4. Step 4: Simplify right side
    65,826.09x = 3,234,939,617.53
  5. Step 5: Solve for x
    x = 3,234,939,617.53/65,826.09
  6. Step 6: Final answer
    x = 49,143.73

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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.