Home / 70,973.20-106,464.66-18,388

Finding the Fourth Proportional to 70,973.20, 106,464.66 and 18,388

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Solution

The fourth proportional to 70,973.20, 106,464.66 and 18,388 is: 27,583.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,973.20 : 106,464.66 = 18,388 : x
  2. Step 2: Convert to fraction form
    70,973.20/106,464.66 = 18,388/x
  3. Step 3: Cross multiply
    70,973.20x = 106,464.66 × 18,388
  4. Step 4: Simplify right side
    70,973.20x = 1,957,672,168.08
  5. Step 5: Solve for x
    x = 1,957,672,168.08/70,973.20
  6. Step 6: Final answer
    x = 27,583.26

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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.