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Finding the Fourth Proportional to 65,861.92, 90,888.60 and 37,568.08

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Solution

The fourth proportional to 65,861.92, 90,888.60 and 37,568.08 is: 51,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.92 : 90,888.60 = 37,568.08 : x
  2. Step 2: Convert to fraction form
    65,861.92/90,888.60 = 37,568.08/x
  3. Step 3: Cross multiply
    65,861.92x = 90,888.60 × 37,568.08
  4. Step 4: Simplify right side
    65,861.92x = 3,414,510,195.89
  5. Step 5: Solve for x
    x = 3,414,510,195.89/65,861.92
  6. Step 6: Final answer
    x = 51,843.47

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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.