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Finding the Fourth Proportional to 73,185.58, 109,753.76 and 28,800.70

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Solution

The fourth proportional to 73,185.58, 109,753.76 and 28,800.70 is: 43,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,185.58 : 109,753.76 = 28,800.70 : x
  2. Step 2: Convert to fraction form
    73,185.58/109,753.76 = 28,800.70/x
  3. Step 3: Cross multiply
    73,185.58x = 109,753.76 × 28,800.70
  4. Step 4: Simplify right side
    73,185.58x = 3,160,985,115.63
  5. Step 5: Solve for x
    x = 3,160,985,115.63/73,185.58
  6. Step 6: Final answer
    x = 43,191.37

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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.