Home / 54,108.79-74,668.70-30,235.66

Finding the Fourth Proportional to 54,108.79, 74,668.70 and 30,235.66

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Solution

The fourth proportional to 54,108.79, 74,668.70 and 30,235.66 is: 41,724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,108.79 : 74,668.70 = 30,235.66 : x
  2. Step 2: Convert to fraction form
    54,108.79/74,668.70 = 30,235.66/x
  3. Step 3: Cross multiply
    54,108.79x = 74,668.70 × 30,235.66
  4. Step 4: Simplify right side
    54,108.79x = 2,257,657,397.21
  5. Step 5: Solve for x
    x = 2,257,657,397.21/54,108.79
  6. Step 6: Final answer
    x = 41,724.41

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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.