Home / 48,509.80-72,764.70-18,928.60

Finding the Fourth Proportional to 48,509.80, 72,764.70 and 18,928.60

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Solution

The fourth proportional to 48,509.80, 72,764.70 and 18,928.60 is: 28,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,509.80 : 72,764.70 = 18,928.60 : x
  2. Step 2: Convert to fraction form
    48,509.80/72,764.70 = 18,928.60/x
  3. Step 3: Cross multiply
    48,509.80x = 72,764.70 × 18,928.60
  4. Step 4: Simplify right side
    48,509.80x = 1,377,333,900.42
  5. Step 5: Solve for x
    x = 1,377,333,900.42/48,509.80
  6. Step 6: Final answer
    x = 28,392.90

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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.