Home / 74,960.43-112,407.84-28,180.50

Finding the Fourth Proportional to 74,960.43, 112,407.84 and 28,180.50

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Solution

The fourth proportional to 74,960.43, 112,407.84 and 28,180.50 is: 42,258.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,960.43 : 112,407.84 = 28,180.50 : x
  2. Step 2: Convert to fraction form
    74,960.43/112,407.84 = 28,180.50/x
  3. Step 3: Cross multiply
    74,960.43x = 112,407.84 × 28,180.50
  4. Step 4: Simplify right side
    74,960.43x = 3,167,709,135.12
  5. Step 5: Solve for x
    x = 3,167,709,135.12/74,960.43
  6. Step 6: Final answer
    x = 42,258.42

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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.