Home / 74,960.30-112,427.49-28,213.58

Finding the Fourth Proportional to 74,960.30, 112,427.49 and 28,213.58

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Solution

The fourth proportional to 74,960.30, 112,427.49 and 28,213.58 is: 42,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,960.30 : 112,427.49 = 28,213.58 : x
  2. Step 2: Convert to fraction form
    74,960.30/112,427.49 = 28,213.58/x
  3. Step 3: Cross multiply
    74,960.30x = 112,427.49 × 28,213.58
  4. Step 4: Simplify right side
    74,960.30x = 3,171,981,983.31
  5. Step 5: Solve for x
    x = 3,171,981,983.31/74,960.30
  6. Step 6: Final answer
    x = 42,315.49

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1.5x scale

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.