Home / 78,285.52-117,204.54-51,937.84

Finding the Fourth Proportional to 78,285.52, 117,204.54 and 51,937.84

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Solution

The fourth proportional to 78,285.52, 117,204.54 and 51,937.84 is: 77,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,285.52 : 117,204.54 = 51,937.84 : x
  2. Step 2: Convert to fraction form
    78,285.52/117,204.54 = 51,937.84/x
  3. Step 3: Cross multiply
    78,285.52x = 117,204.54 × 51,937.84
  4. Step 4: Simplify right side
    78,285.52x = 6,087,350,645.79
  5. Step 5: Solve for x
    x = 6,087,350,645.79/78,285.52
  6. Step 6: Final answer
    x = 77,758.32

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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.