Home / 54,178.87-74,772.47-31,209.49

Finding the Fourth Proportional to 54,178.87, 74,772.47 and 31,209.49

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Solution

The fourth proportional to 54,178.87, 74,772.47 and 31,209.49 is: 43,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.87 : 74,772.47 = 31,209.49 : x
  2. Step 2: Convert to fraction form
    54,178.87/74,772.47 = 31,209.49/x
  3. Step 3: Cross multiply
    54,178.87x = 74,772.47 × 31,209.49
  4. Step 4: Simplify right side
    54,178.87x = 2,333,610,723.37
  5. Step 5: Solve for x
    x = 2,333,610,723.37/54,178.87
  6. Step 6: Final answer
    x = 43,072.34

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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.