Home / 40,451.81-60,692.29-20,739.65

Finding the Fourth Proportional to 40,451.81, 60,692.29 and 20,739.65

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Solution

The fourth proportional to 40,451.81, 60,692.29 and 20,739.65 is: 31,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,451.81 : 60,692.29 = 20,739.65 : x
  2. Step 2: Convert to fraction form
    40,451.81/60,692.29 = 20,739.65/x
  3. Step 3: Cross multiply
    40,451.81x = 60,692.29 × 20,739.65
  4. Step 4: Simplify right side
    40,451.81x = 1,258,736,496.99
  5. Step 5: Solve for x
    x = 1,258,736,496.99/40,451.81
  6. Step 6: Final answer
    x = 31,116.94

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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.