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Finding the Fourth Proportional to 66,471.36, 99,620.28 and 26,982.24

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Solution

The fourth proportional to 66,471.36, 99,620.28 and 26,982.24 is: 40,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,471.36 : 99,620.28 = 26,982.24 : x
  2. Step 2: Convert to fraction form
    66,471.36/99,620.28 = 26,982.24/x
  3. Step 3: Cross multiply
    66,471.36x = 99,620.28 × 26,982.24
  4. Step 4: Simplify right side
    66,471.36x = 2,687,978,303.83
  5. Step 5: Solve for x
    x = 2,687,978,303.83/66,471.36
  6. Step 6: Final answer
    x = 40,438.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.