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Finding the Fourth Proportional to 78,977.50, 118,486.78 and 23,573.50

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Solution

The fourth proportional to 78,977.50, 118,486.78 and 23,573.50 is: 35,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,977.50 : 118,486.78 = 23,573.50 : x
  2. Step 2: Convert to fraction form
    78,977.50/118,486.78 = 23,573.50/x
  3. Step 3: Cross multiply
    78,977.50x = 118,486.78 × 23,573.50
  4. Step 4: Simplify right side
    78,977.50x = 2,793,148,108.33
  5. Step 5: Solve for x
    x = 2,793,148,108.33/78,977.50
  6. Step 6: Final answer
    x = 35,366.38

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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.