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Finding the Fourth Proportional to 72,777.58, 109,165.83 and 22,857.58

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Solution

The fourth proportional to 72,777.58, 109,165.83 and 22,857.58 is: 34,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,777.58 : 109,165.83 = 22,857.58 : x
  2. Step 2: Convert to fraction form
    72,777.58/109,165.83 = 22,857.58/x
  3. Step 3: Cross multiply
    72,777.58x = 109,165.83 × 22,857.58
  4. Step 4: Simplify right side
    72,777.58x = 2,495,266,692.49
  5. Step 5: Solve for x
    x = 2,495,266,692.49/72,777.58
  6. Step 6: Final answer
    x = 34,286.20

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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.