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Finding the Fourth Proportional to 65,377.34, 90,213.29 and 36,693.12

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Solution

The fourth proportional to 65,377.34, 90,213.29 and 36,693.12 is: 50,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,377.34 : 90,213.29 = 36,693.12 : x
  2. Step 2: Convert to fraction form
    65,377.34/90,213.29 = 36,693.12/x
  3. Step 3: Cross multiply
    65,377.34x = 90,213.29 × 36,693.12
  4. Step 4: Simplify right side
    65,377.34x = 3,310,206,892.10
  5. Step 5: Solve for x
    x = 3,310,206,892.10/65,377.34
  6. Step 6: Final answer
    x = 50,632.33

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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.