Home / 74,908.24-112,379.12-28,161.52

Finding the Fourth Proportional to 74,908.24, 112,379.12 and 28,161.52

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Solution

The fourth proportional to 74,908.24, 112,379.12 and 28,161.52 is: 42,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,908.24 : 112,379.12 = 28,161.52 : x
  2. Step 2: Convert to fraction form
    74,908.24/112,379.12 = 28,161.52/x
  3. Step 3: Cross multiply
    74,908.24x = 112,379.12 × 28,161.52
  4. Step 4: Simplify right side
    74,908.24x = 3,164,766,835.46
  5. Step 5: Solve for x
    x = 3,164,766,835.46/74,908.24
  6. Step 6: Final answer
    x = 42,248.58

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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.