Home / 48,305.40-72,458.10-12,766.65

Finding the Fourth Proportional to 48,305.40, 72,458.10 and 12,766.65

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Solution

The fourth proportional to 48,305.40, 72,458.10 and 12,766.65 is: 19,149.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,305.40 : 72,458.10 = 12,766.65 : x
  2. Step 2: Convert to fraction form
    48,305.40/72,458.10 = 12,766.65/x
  3. Step 3: Cross multiply
    48,305.40x = 72,458.10 × 12,766.65
  4. Step 4: Simplify right side
    48,305.40x = 925,047,202.37
  5. Step 5: Solve for x
    x = 925,047,202.37/48,305.40
  6. Step 6: Final answer
    x = 19,149.98

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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.