Home / 54,631.16-75,392.41-30,758.69

Finding the Fourth Proportional to 54,631.16, 75,392.41 and 30,758.69

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Solution

The fourth proportional to 54,631.16, 75,392.41 and 30,758.69 is: 42,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,631.16 : 75,392.41 = 30,758.69 : x
  2. Step 2: Convert to fraction form
    54,631.16/75,392.41 = 30,758.69/x
  3. Step 3: Cross multiply
    54,631.16x = 75,392.41 × 30,758.69
  4. Step 4: Simplify right side
    54,631.16x = 2,318,971,313.68
  5. Step 5: Solve for x
    x = 2,318,971,313.68/54,631.16
  6. Step 6: Final answer
    x = 42,447.78

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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.