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Finding the Fourth Proportional to 65,487.32, 90,300.98 and 44,229.68

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Solution

The fourth proportional to 65,487.32, 90,300.98 and 44,229.68 is: 60,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,487.32 : 90,300.98 = 44,229.68 : x
  2. Step 2: Convert to fraction form
    65,487.32/90,300.98 = 44,229.68/x
  3. Step 3: Cross multiply
    65,487.32x = 90,300.98 × 44,229.68
  4. Step 4: Simplify right side
    65,487.32x = 3,993,983,449.09
  5. Step 5: Solve for x
    x = 3,993,983,449.09/65,487.32
  6. Step 6: Final answer
    x = 60,988.65

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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.