Home / 65,728.19-90,704.90-35,513.52

Finding the Fourth Proportional to 65,728.19, 90,704.90 and 35,513.52

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Solution

The fourth proportional to 65,728.19, 90,704.90 and 35,513.52 is: 49,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,728.19 : 90,704.90 = 35,513.52 : x
  2. Step 2: Convert to fraction form
    65,728.19/90,704.90 = 35,513.52/x
  3. Step 3: Cross multiply
    65,728.19x = 90,704.90 × 35,513.52
  4. Step 4: Simplify right side
    65,728.19x = 3,221,250,280.25
  5. Step 5: Solve for x
    x = 3,221,250,280.25/65,728.19
  6. Step 6: Final answer
    x = 49,008.66

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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.