Home / 52,242.72-78,365.76-17,178.40

Finding the Fourth Proportional to 52,242.72, 78,365.76 and 17,178.40

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Solution

The fourth proportional to 52,242.72, 78,365.76 and 17,178.40 is: 25,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,242.72 : 78,365.76 = 17,178.40 : x
  2. Step 2: Convert to fraction form
    52,242.72/78,365.76 = 17,178.40/x
  3. Step 3: Cross multiply
    52,242.72x = 78,365.76 × 17,178.40
  4. Step 4: Simplify right side
    52,242.72x = 1,346,198,371.58
  5. Step 5: Solve for x
    x = 1,346,198,371.58/52,242.72
  6. Step 6: Final answer
    x = 25,768.15

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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.