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Finding the Fourth Proportional to 65,482.74, 90,350.41 and 38,243.37

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Solution

The fourth proportional to 65,482.74, 90,350.41 and 38,243.37 is: 52,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,482.74 : 90,350.41 = 38,243.37 : x
  2. Step 2: Convert to fraction form
    65,482.74/90,350.41 = 38,243.37/x
  3. Step 3: Cross multiply
    65,482.74x = 90,350.41 × 38,243.37
  4. Step 4: Simplify right side
    65,482.74x = 3,455,304,581.75
  5. Step 5: Solve for x
    x = 3,455,304,581.75/65,482.74
  6. Step 6: Final answer
    x = 52,766.65

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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.