Home / 53,439.88-80,221.94-31,269.18

Finding the Fourth Proportional to 53,439.88, 80,221.94 and 31,269.18

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Solution

The fourth proportional to 53,439.88, 80,221.94 and 31,269.18 is: 46,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,439.88 : 80,221.94 = 31,269.18 : x
  2. Step 2: Convert to fraction form
    53,439.88/80,221.94 = 31,269.18/x
  3. Step 3: Cross multiply
    53,439.88x = 80,221.94 × 31,269.18
  4. Step 4: Simplify right side
    53,439.88x = 2,508,474,281.81
  5. Step 5: Solve for x
    x = 2,508,474,281.81/53,439.88
  6. Step 6: Final answer
    x = 46,940.12

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1.5x scale

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.