Home / 42,153.09-63,233.87-12,168.08

Finding the Fourth Proportional to 42,153.09, 63,233.87 and 12,168.08

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Solution

The fourth proportional to 42,153.09, 63,233.87 and 12,168.08 is: 18,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.09 : 63,233.87 = 12,168.08 : x
  2. Step 2: Convert to fraction form
    42,153.09/63,233.87 = 12,168.08/x
  3. Step 3: Cross multiply
    42,153.09x = 63,233.87 × 12,168.08
  4. Step 4: Simplify right side
    42,153.09x = 769,434,788.87
  5. Step 5: Solve for x
    x = 769,434,788.87/42,153.09
  6. Step 6: Final answer
    x = 18,253.34

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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.