Home / 54,179.50-74,771.03-30,307.78

Finding the Fourth Proportional to 54,179.50, 74,771.03 and 30,307.78

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Solution

The fourth proportional to 54,179.50, 74,771.03 and 30,307.78 is: 41,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,179.50 : 74,771.03 = 30,307.78 : x
  2. Step 2: Convert to fraction form
    54,179.50/74,771.03 = 30,307.78/x
  3. Step 3: Cross multiply
    54,179.50x = 74,771.03 × 30,307.78
  4. Step 4: Simplify right side
    54,179.50x = 2,266,143,927.61
  5. Step 5: Solve for x
    x = 2,266,143,927.61/54,179.50
  6. Step 6: Final answer
    x = 41,826.59

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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.