Home / 54,284.13-74,912.09-30,410.79

Finding the Fourth Proportional to 54,284.13, 74,912.09 and 30,410.79

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Solution

The fourth proportional to 54,284.13, 74,912.09 and 30,410.79 is: 41,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,284.13 : 74,912.09 = 30,410.79 : x
  2. Step 2: Convert to fraction form
    54,284.13/74,912.09 = 30,410.79/x
  3. Step 3: Cross multiply
    54,284.13x = 74,912.09 × 30,410.79
  4. Step 4: Simplify right side
    54,284.13x = 2,278,136,100.76
  5. Step 5: Solve for x
    x = 2,278,136,100.76/54,284.13
  6. Step 6: Final answer
    x = 41,966.89

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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.