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Finding the Fourth Proportional to 54,640.39, 75,403.02 and 30,769.42

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Solution

The fourth proportional to 54,640.39, 75,403.02 and 30,769.42 is: 42,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640.39 : 75,403.02 = 30,769.42 : x
  2. Step 2: Convert to fraction form
    54,640.39/75,403.02 = 30,769.42/x
  3. Step 3: Cross multiply
    54,640.39x = 75,403.02 × 30,769.42
  4. Step 4: Simplify right side
    54,640.39x = 2,320,107,191.65
  5. Step 5: Solve for x
    x = 2,320,107,191.65/54,640.39
  6. Step 6: Final answer
    x = 42,461.40

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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.