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Finding the Fourth Proportional to 69,381.56, 103,570.30 and 60,974.21

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Solution

The fourth proportional to 69,381.56, 103,570.30 and 60,974.21 is: 91,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,381.56 : 103,570.30 = 60,974.21 : x
  2. Step 2: Convert to fraction form
    69,381.56/103,570.30 = 60,974.21/x
  3. Step 3: Cross multiply
    69,381.56x = 103,570.30 × 60,974.21
  4. Step 4: Simplify right side
    69,381.56x = 6,315,117,221.96
  5. Step 5: Solve for x
    x = 6,315,117,221.96/69,381.56
  6. Step 6: Final answer
    x = 91,020.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.