Home / 74,785.59-112,145.52-28,005.66

Finding the Fourth Proportional to 74,785.59, 112,145.52 and 28,005.66

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Solution

The fourth proportional to 74,785.59, 112,145.52 and 28,005.66 is: 41,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.59 : 112,145.52 = 28,005.66 : x
  2. Step 2: Convert to fraction form
    74,785.59/112,145.52 = 28,005.66/x
  3. Step 3: Cross multiply
    74,785.59x = 112,145.52 × 28,005.66
  4. Step 4: Simplify right side
    74,785.59x = 3,140,709,408.66
  5. Step 5: Solve for x
    x = 3,140,709,408.66/74,785.59
  6. Step 6: Final answer
    x = 41,996.18

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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.