Home / 40,142.06-60,131.01-18,764.18

Finding the Fourth Proportional to 40,142.06, 60,131.01 and 18,764.18

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Solution

The fourth proportional to 40,142.06, 60,131.01 and 18,764.18 is: 28,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.06 : 60,131.01 = 18,764.18 : x
  2. Step 2: Convert to fraction form
    40,142.06/60,131.01 = 18,764.18/x
  3. Step 3: Cross multiply
    40,142.06x = 60,131.01 × 18,764.18
  4. Step 4: Simplify right side
    40,142.06x = 1,128,309,095.22
  5. Step 5: Solve for x
    x = 1,128,309,095.22/40,142.06
  6. Step 6: Final answer
    x = 28,107.90

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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.