Home / 56,748.47-85,073.39-28,645.12

Finding the Fourth Proportional to 56,748.47, 85,073.39 and 28,645.12

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Solution

The fourth proportional to 56,748.47, 85,073.39 and 28,645.12 is: 42,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,748.47 : 85,073.39 = 28,645.12 : x
  2. Step 2: Convert to fraction form
    56,748.47/85,073.39 = 28,645.12/x
  3. Step 3: Cross multiply
    56,748.47x = 85,073.39 × 28,645.12
  4. Step 4: Simplify right side
    56,748.47x = 2,436,936,896.76
  5. Step 5: Solve for x
    x = 2,436,936,896.76/56,748.47
  6. Step 6: Final answer
    x = 42,942.78

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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.