Home / 74,880.78-112,345.47-22,290.72

Finding the Fourth Proportional to 74,880.78, 112,345.47 and 22,290.72

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Solution

The fourth proportional to 74,880.78, 112,345.47 and 22,290.72 is: 33,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880.78 : 112,345.47 = 22,290.72 : x
  2. Step 2: Convert to fraction form
    74,880.78/112,345.47 = 22,290.72/x
  3. Step 3: Cross multiply
    74,880.78x = 112,345.47 × 22,290.72
  4. Step 4: Simplify right side
    74,880.78x = 2,504,261,415.04
  5. Step 5: Solve for x
    x = 2,504,261,415.04/74,880.78
  6. Step 6: Final answer
    x = 33,443.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.