Home / 65,839.18-90,857.40-35,623.84

Finding the Fourth Proportional to 65,839.18, 90,857.40 and 35,623.84

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Solution

The fourth proportional to 65,839.18, 90,857.40 and 35,623.84 is: 49,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,839.18 : 90,857.40 = 35,623.84 : x
  2. Step 2: Convert to fraction form
    65,839.18/90,857.40 = 35,623.84/x
  3. Step 3: Cross multiply
    65,839.18x = 90,857.40 × 35,623.84
  4. Step 4: Simplify right side
    65,839.18x = 3,236,689,119.68
  5. Step 5: Solve for x
    x = 3,236,689,119.68/65,839.18
  6. Step 6: Final answer
    x = 49,160.53

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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.