Home / 48,105.92-71,977.36-28,395.20

Finding the Fourth Proportional to 48,105.92, 71,977.36 and 28,395.20

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Solution

The fourth proportional to 48,105.92, 71,977.36 and 28,395.20 is: 42,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,105.92 : 71,977.36 = 28,395.20 : x
  2. Step 2: Convert to fraction form
    48,105.92/71,977.36 = 28,395.20/x
  3. Step 3: Cross multiply
    48,105.92x = 71,977.36 × 28,395.20
  4. Step 4: Simplify right side
    48,105.92x = 2,043,811,532.67
  5. Step 5: Solve for x
    x = 2,043,811,532.67/48,105.92
  6. Step 6: Final answer
    x = 42,485.66

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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.