Home / 78,152.08-117,242.52-25,564.48

Finding the Fourth Proportional to 78,152.08, 117,242.52 and 25,564.48

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Solution

The fourth proportional to 78,152.08, 117,242.52 and 25,564.48 is: 38,351.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,152.08 : 117,242.52 = 25,564.48 : x
  2. Step 2: Convert to fraction form
    78,152.08/117,242.52 = 25,564.48/x
  3. Step 3: Cross multiply
    78,152.08x = 117,242.52 × 25,564.48
  4. Step 4: Simplify right side
    78,152.08x = 2,997,244,057.69
  5. Step 5: Solve for x
    x = 2,997,244,057.69/78,152.08
  6. Step 6: Final answer
    x = 38,351.43

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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.