Home / 54,261.09-74,880.09-30,387.69

Finding the Fourth Proportional to 54,261.09, 74,880.09 and 30,387.69

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Solution

The fourth proportional to 54,261.09, 74,880.09 and 30,387.69 is: 41,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,261.09 : 74,880.09 = 30,387.69 : x
  2. Step 2: Convert to fraction form
    54,261.09/74,880.09 = 30,387.69/x
  3. Step 3: Cross multiply
    54,261.09x = 74,880.09 × 30,387.69
  4. Step 4: Simplify right side
    54,261.09x = 2,275,432,962.09
  5. Step 5: Solve for x
    x = 2,275,432,962.09/54,261.09
  6. Step 6: Final answer
    x = 41,934.89

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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.