Home / 65,242.97-90,078.66-50,108.59

Finding the Fourth Proportional to 65,242.97, 90,078.66 and 50,108.59

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Solution

The fourth proportional to 65,242.97, 90,078.66 and 50,108.59 is: 69,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,242.97 : 90,078.66 = 50,108.59 : x
  2. Step 2: Convert to fraction form
    65,242.97/90,078.66 = 50,108.59/x
  3. Step 3: Cross multiply
    65,242.97x = 90,078.66 × 50,108.59
  4. Step 4: Simplify right side
    65,242.97x = 4,513,714,641.69
  5. Step 5: Solve for x
    x = 4,513,714,641.69/65,242.97
  6. Step 6: Final answer
    x = 69,183.16

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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.