Home / 66,545.86-99,823.58-20,949.65

Finding the Fourth Proportional to 66,545.86, 99,823.58 and 20,949.65

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Solution

The fourth proportional to 66,545.86, 99,823.58 and 20,949.65 is: 31,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545.86 : 99,823.58 = 20,949.65 : x
  2. Step 2: Convert to fraction form
    66,545.86/99,823.58 = 20,949.65/x
  3. Step 3: Cross multiply
    66,545.86x = 99,823.58 × 20,949.65
  4. Step 4: Simplify right side
    66,545.86x = 2,091,268,958.00
  5. Step 5: Solve for x
    x = 2,091,268,958.00/66,545.86
  6. Step 6: Final answer
    x = 31,425.98

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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.