Home / 60,143.41-90,214.05-20,699.65

Finding the Fourth Proportional to 60,143.41, 90,214.05 and 20,699.65

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Solution

The fourth proportional to 60,143.41, 90,214.05 and 20,699.65 is: 31,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,143.41 : 90,214.05 = 20,699.65 : x
  2. Step 2: Convert to fraction form
    60,143.41/90,214.05 = 20,699.65/x
  3. Step 3: Cross multiply
    60,143.41x = 90,214.05 × 20,699.65
  4. Step 4: Simplify right side
    60,143.41x = 1,867,399,450.47
  5. Step 5: Solve for x
    x = 1,867,399,450.47/60,143.41
  6. Step 6: Final answer
    x = 31,049.11

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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.