Home / 54,178.77-74,736.61-31,515.21

Finding the Fourth Proportional to 54,178.77, 74,736.61 and 31,515.21

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Solution

The fourth proportional to 54,178.77, 74,736.61 and 31,515.21 is: 43,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.77 : 74,736.61 = 31,515.21 : x
  2. Step 2: Convert to fraction form
    54,178.77/74,736.61 = 31,515.21/x
  3. Step 3: Cross multiply
    54,178.77x = 74,736.61 × 31,515.21
  4. Step 4: Simplify right side
    54,178.77x = 2,355,339,958.84
  5. Step 5: Solve for x
    x = 2,355,339,958.84/54,178.77
  6. Step 6: Final answer
    x = 43,473.49

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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.