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Finding the Fourth Proportional to 78,755.88, 118,000.12 and 47,525.52

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Solution

The fourth proportional to 78,755.88, 118,000.12 and 47,525.52 is: 71,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755.88 : 118,000.12 = 47,525.52 : x
  2. Step 2: Convert to fraction form
    78,755.88/118,000.12 = 47,525.52/x
  3. Step 3: Cross multiply
    78,755.88x = 118,000.12 × 47,525.52
  4. Step 4: Simplify right side
    78,755.88x = 5,608,017,063.06
  5. Step 5: Solve for x
    x = 5,608,017,063.06/78,755.88
  6. Step 6: Final answer
    x = 71,207.60

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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.