Home / 65,286.36-90,145.96-50,155.16

Finding the Fourth Proportional to 65,286.36, 90,145.96 and 50,155.16

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Solution

The fourth proportional to 65,286.36, 90,145.96 and 50,155.16 is: 69,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,286.36 : 90,145.96 = 50,155.16 : x
  2. Step 2: Convert to fraction form
    65,286.36/90,145.96 = 50,155.16/x
  3. Step 3: Cross multiply
    65,286.36x = 90,145.96 × 50,155.16
  4. Step 4: Simplify right side
    65,286.36x = 4,521,285,047.15
  5. Step 5: Solve for x
    x = 4,521,285,047.15/65,286.36
  6. Step 6: Final answer
    x = 69,253.13

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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.