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Finding the Fourth Proportional to 54,859.44, 75,706.08 and 30,986.16

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Solution

The fourth proportional to 54,859.44, 75,706.08 and 30,986.16 is: 42,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,859.44 : 75,706.08 = 30,986.16 : x
  2. Step 2: Convert to fraction form
    54,859.44/75,706.08 = 30,986.16/x
  3. Step 3: Cross multiply
    54,859.44x = 75,706.08 × 30,986.16
  4. Step 4: Simplify right side
    54,859.44x = 2,345,840,707.85
  5. Step 5: Solve for x
    x = 2,345,840,707.85/54,859.44
  6. Step 6: Final answer
    x = 42,760.93

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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.