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Finding the Fourth Proportional to 78,625.50, 117,938.25 and 23,225.82

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Solution

The fourth proportional to 78,625.50, 117,938.25 and 23,225.82 is: 34,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,625.50 : 117,938.25 = 23,225.82 : x
  2. Step 2: Convert to fraction form
    78,625.50/117,938.25 = 23,225.82/x
  3. Step 3: Cross multiply
    78,625.50x = 117,938.25 × 23,225.82
  4. Step 4: Simplify right side
    78,625.50x = 2,739,212,565.62
  5. Step 5: Solve for x
    x = 2,739,212,565.62/78,625.50
  6. Step 6: Final answer
    x = 34,838.73

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1.5x scale

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.