Home / 65,732.18-90,728.99-38,884.02

Finding the Fourth Proportional to 65,732.18, 90,728.99 and 38,884.02

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Solution

The fourth proportional to 65,732.18, 90,728.99 and 38,884.02 is: 53,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,732.18 : 90,728.99 = 38,884.02 : x
  2. Step 2: Convert to fraction form
    65,732.18/90,728.99 = 38,884.02/x
  3. Step 3: Cross multiply
    65,732.18x = 90,728.99 × 38,884.02
  4. Step 4: Simplify right side
    65,732.18x = 3,527,907,861.74
  5. Step 5: Solve for x
    x = 3,527,907,861.74/65,732.18
  6. Step 6: Final answer
    x = 53,670.94

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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.