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Finding the Fourth Proportional to 73,276.56, 101,121.60 and 39,742.56

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Solution

The fourth proportional to 73,276.56, 101,121.60 and 39,742.56 is: 54,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,276.56 : 101,121.60 = 39,742.56 : x
  2. Step 2: Convert to fraction form
    73,276.56/101,121.60 = 39,742.56/x
  3. Step 3: Cross multiply
    73,276.56x = 101,121.60 × 39,742.56
  4. Step 4: Simplify right side
    73,276.56x = 4,018,831,255.30
  5. Step 5: Solve for x
    x = 4,018,831,255.30/73,276.56
  6. Step 6: Final answer
    x = 54,844.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.