Home / 48,909.32-73,321.88-20,803.64

Finding the Fourth Proportional to 48,909.32, 73,321.88 and 20,803.64

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Solution

The fourth proportional to 48,909.32, 73,321.88 and 20,803.64 is: 31,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,909.32 : 73,321.88 = 20,803.64 : x
  2. Step 2: Convert to fraction form
    48,909.32/73,321.88 = 20,803.64/x
  3. Step 3: Cross multiply
    48,909.32x = 73,321.88 × 20,803.64
  4. Step 4: Simplify right side
    48,909.32x = 1,525,361,995.64
  5. Step 5: Solve for x
    x = 1,525,361,995.64/48,909.32
  6. Step 6: Final answer
    x = 31,187.55

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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.