Home / 65,921.75-90,971.46-35,706.36

Finding the Fourth Proportional to 65,921.75, 90,971.46 and 35,706.36

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Solution

The fourth proportional to 65,921.75, 90,971.46 and 35,706.36 is: 49,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.75 : 90,971.46 = 35,706.36 : x
  2. Step 2: Convert to fraction form
    65,921.75/90,971.46 = 35,706.36/x
  3. Step 3: Cross multiply
    65,921.75x = 90,971.46 × 35,706.36
  4. Step 4: Simplify right side
    65,921.75x = 3,248,259,700.49
  5. Step 5: Solve for x
    x = 3,248,259,700.49/65,921.75
  6. Step 6: Final answer
    x = 49,274.48

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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.