Home / 48,221.20-72,331.80-31,805.20

Finding the Fourth Proportional to 48,221.20, 72,331.80 and 31,805.20

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Solution

The fourth proportional to 48,221.20, 72,331.80 and 31,805.20 is: 47,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,221.20 : 72,331.80 = 31,805.20 : x
  2. Step 2: Convert to fraction form
    48,221.20/72,331.80 = 31,805.20/x
  3. Step 3: Cross multiply
    48,221.20x = 72,331.80 × 31,805.20
  4. Step 4: Simplify right side
    48,221.20x = 2,300,527,365.36
  5. Step 5: Solve for x
    x = 2,300,527,365.36/48,221.20
  6. Step 6: Final answer
    x = 47,707.80

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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.