Home / 65,450.88-90,322.56-38,242.80

Finding the Fourth Proportional to 65,450.88, 90,322.56 and 38,242.80

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Solution

The fourth proportional to 65,450.88, 90,322.56 and 38,242.80 is: 52,775.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,450.88 : 90,322.56 = 38,242.80 : x
  2. Step 2: Convert to fraction form
    65,450.88/90,322.56 = 38,242.80/x
  3. Step 3: Cross multiply
    65,450.88x = 90,322.56 × 38,242.80
  4. Step 4: Simplify right side
    65,450.88x = 3,454,187,597.57
  5. Step 5: Solve for x
    x = 3,454,187,597.57/65,450.88
  6. Step 6: Final answer
    x = 52,775.27

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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.