Home / 54,131.90-74,700.70-30,261.38

Finding the Fourth Proportional to 54,131.90, 74,700.70 and 30,261.38

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Solution

The fourth proportional to 54,131.90, 74,700.70 and 30,261.38 is: 41,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,131.90 : 74,700.70 = 30,261.38 : x
  2. Step 2: Convert to fraction form
    54,131.90/74,700.70 = 30,261.38/x
  3. Step 3: Cross multiply
    54,131.90x = 74,700.70 × 30,261.38
  4. Step 4: Simplify right side
    54,131.90x = 2,260,545,819.81
  5. Step 5: Solve for x
    x = 2,260,545,819.81/54,131.90
  6. Step 6: Final answer
    x = 41,759.96

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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.