Home / 65,850.89-90,868.49-38,632.46

Finding the Fourth Proportional to 65,850.89, 90,868.49 and 38,632.46

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Solution

The fourth proportional to 65,850.89, 90,868.49 and 38,632.46 is: 53,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.89 : 90,868.49 = 38,632.46 : x
  2. Step 2: Convert to fraction form
    65,850.89/90,868.49 = 38,632.46/x
  3. Step 3: Cross multiply
    65,850.89x = 90,868.49 × 38,632.46
  4. Step 4: Simplify right side
    65,850.89x = 3,510,473,628.94
  5. Step 5: Solve for x
    x = 3,510,473,628.94/65,850.89
  6. Step 6: Final answer
    x = 53,309.43

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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.