Home / 36,756.20-55,058.16-19,172.72

Finding the Fourth Proportional to 36,756.20, 55,058.16 and 19,172.72

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Solution

The fourth proportional to 36,756.20, 55,058.16 and 19,172.72 is: 28,719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,756.20 : 55,058.16 = 19,172.72 : x
  2. Step 2: Convert to fraction form
    36,756.20/55,058.16 = 19,172.72/x
  3. Step 3: Cross multiply
    36,756.20x = 55,058.16 × 19,172.72
  4. Step 4: Simplify right side
    36,756.20x = 1,055,614,685.40
  5. Step 5: Solve for x
    x = 1,055,614,685.40/36,756.20
  6. Step 6: Final answer
    x = 28,719.36

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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.