Home / 65,786.16-90,784.70-35,571.28

Finding the Fourth Proportional to 65,786.16, 90,784.70 and 35,571.28

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Solution

The fourth proportional to 65,786.16, 90,784.70 and 35,571.28 is: 49,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,786.16 : 90,784.70 = 35,571.28 : x
  2. Step 2: Convert to fraction form
    65,786.16/90,784.70 = 35,571.28/x
  3. Step 3: Cross multiply
    65,786.16x = 90,784.70 × 35,571.28
  4. Step 4: Simplify right side
    65,786.16x = 3,229,327,983.42
  5. Step 5: Solve for x
    x = 3,229,327,983.42/65,786.16
  6. Step 6: Final answer
    x = 49,088.26

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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.