Home / 70,901.83-106,352.45-28,781.56

Finding the Fourth Proportional to 70,901.83, 106,352.45 and 28,781.56

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Solution

The fourth proportional to 70,901.83, 106,352.45 and 28,781.56 is: 43,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.83 : 106,352.45 = 28,781.56 : x
  2. Step 2: Convert to fraction form
    70,901.83/106,352.45 = 28,781.56/x
  3. Step 3: Cross multiply
    70,901.83x = 106,352.45 × 28,781.56
  4. Step 4: Simplify right side
    70,901.83x = 3,060,988,745.15
  5. Step 5: Solve for x
    x = 3,060,988,745.15/70,901.83
  6. Step 6: Final answer
    x = 43,172.21

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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.