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Finding the Fourth Proportional to 66,088.87, 91,250.03 and 40,629.38

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Solution

The fourth proportional to 66,088.87, 91,250.03 and 40,629.38 is: 56,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,088.87 : 91,250.03 = 40,629.38 : x
  2. Step 2: Convert to fraction form
    66,088.87/91,250.03 = 40,629.38/x
  3. Step 3: Cross multiply
    66,088.87x = 91,250.03 × 40,629.38
  4. Step 4: Simplify right side
    66,088.87x = 3,707,431,789.20
  5. Step 5: Solve for x
    x = 3,707,431,789.20/66,088.87
  6. Step 6: Final answer
    x = 56,097.67

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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.