Home / 74,958.30-112,424.49-28,211.58

Finding the Fourth Proportional to 74,958.30, 112,424.49 and 28,211.58

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Solution

The fourth proportional to 74,958.30, 112,424.49 and 28,211.58 is: 42,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,958.30 : 112,424.49 = 28,211.58 : x
  2. Step 2: Convert to fraction form
    74,958.30/112,424.49 = 28,211.58/x
  3. Step 3: Cross multiply
    74,958.30x = 112,424.49 × 28,211.58
  4. Step 4: Simplify right side
    74,958.30x = 3,171,672,493.59
  5. Step 5: Solve for x
    x = 3,171,672,493.59/74,958.30
  6. Step 6: Final answer
    x = 42,312.49

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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.