Home / 48,919.60-73,379.40-31,423.60

Finding the Fourth Proportional to 48,919.60, 73,379.40 and 31,423.60

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Solution

The fourth proportional to 48,919.60, 73,379.40 and 31,423.60 is: 47,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,919.60 : 73,379.40 = 31,423.60 : x
  2. Step 2: Convert to fraction form
    48,919.60/73,379.40 = 31,423.60/x
  3. Step 3: Cross multiply
    48,919.60x = 73,379.40 × 31,423.60
  4. Step 4: Simplify right side
    48,919.60x = 2,305,844,913.84
  5. Step 5: Solve for x
    x = 2,305,844,913.84/48,919.60
  6. Step 6: Final answer
    x = 47,135.40

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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.