Home / 65,781.16-90,777.81-35,566.27

Finding the Fourth Proportional to 65,781.16, 90,777.81 and 35,566.27

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Solution

The fourth proportional to 65,781.16, 90,777.81 and 35,566.27 is: 49,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,781.16 : 90,777.81 = 35,566.27 : x
  2. Step 2: Convert to fraction form
    65,781.16/90,777.81 = 35,566.27/x
  3. Step 3: Cross multiply
    65,781.16x = 90,777.81 × 35,566.27
  4. Step 4: Simplify right side
    65,781.16x = 3,228,628,006.90
  5. Step 5: Solve for x
    x = 3,228,628,006.90/65,781.16
  6. Step 6: Final answer
    x = 49,081.35

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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.