Home / 56,906.73-85,350.50-20,875.76

Finding the Fourth Proportional to 56,906.73, 85,350.50 and 20,875.76

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Solution

The fourth proportional to 56,906.73, 85,350.50 and 20,875.76 is: 31,310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.73 : 85,350.50 = 20,875.76 : x
  2. Step 2: Convert to fraction form
    56,906.73/85,350.50 = 20,875.76/x
  3. Step 3: Cross multiply
    56,906.73x = 85,350.50 × 20,875.76
  4. Step 4: Simplify right side
    56,906.73x = 1,781,756,022.75
  5. Step 5: Solve for x
    x = 1,781,756,022.75/56,906.73
  6. Step 6: Final answer
    x = 31,310.11

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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.