Home / 65,728.53-90,700.25-40,224.33

Finding the Fourth Proportional to 65,728.53, 90,700.25 and 40,224.33

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Solution

The fourth proportional to 65,728.53, 90,700.25 and 40,224.33 is: 55,506.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,728.53 : 90,700.25 = 40,224.33 : x
  2. Step 2: Convert to fraction form
    65,728.53/90,700.25 = 40,224.33/x
  3. Step 3: Cross multiply
    65,728.53x = 90,700.25 × 40,224.33
  4. Step 4: Simplify right side
    65,728.53x = 3,648,356,585.96
  5. Step 5: Solve for x
    x = 3,648,356,585.96/65,728.53
  6. Step 6: Final answer
    x = 55,506.44

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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.