Home / 54,307.20-74,919.60-33,085.20

Finding the Fourth Proportional to 54,307.20, 74,919.60 and 33,085.20

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Solution

The fourth proportional to 54,307.20, 74,919.60 and 33,085.20 is: 45,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,307.20 : 74,919.60 = 33,085.20 : x
  2. Step 2: Convert to fraction form
    54,307.20/74,919.60 = 33,085.20/x
  3. Step 3: Cross multiply
    54,307.20x = 74,919.60 × 33,085.20
  4. Step 4: Simplify right side
    54,307.20x = 2,478,729,949.92
  5. Step 5: Solve for x
    x = 2,478,729,949.92/54,307.20
  6. Step 6: Final answer
    x = 45,642.75

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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.