Home / 54,120.42-74,679.71-29,918.13

Finding the Fourth Proportional to 54,120.42, 74,679.71 and 29,918.13

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Solution

The fourth proportional to 54,120.42, 74,679.71 and 29,918.13 is: 41,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120.42 : 74,679.71 = 29,918.13 : x
  2. Step 2: Convert to fraction form
    54,120.42/74,679.71 = 29,918.13/x
  3. Step 3: Cross multiply
    54,120.42x = 74,679.71 × 29,918.13
  4. Step 4: Simplify right side
    54,120.42x = 2,234,276,842.50
  5. Step 5: Solve for x
    x = 2,234,276,842.50/54,120.42
  6. Step 6: Final answer
    x = 41,283.44

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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.