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Finding the Fourth Proportional to 73,989.01, 102,104.70 and 39,997.52

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Solution

The fourth proportional to 73,989.01, 102,104.70 and 39,997.52 is: 55,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,989.01 : 102,104.70 = 39,997.52 : x
  2. Step 2: Convert to fraction form
    73,989.01/102,104.70 = 39,997.52/x
  3. Step 3: Cross multiply
    73,989.01x = 102,104.70 × 39,997.52
  4. Step 4: Simplify right side
    73,989.01x = 4,083,934,502.72
  5. Step 5: Solve for x
    x = 4,083,934,502.72/73,989.01
  6. Step 6: Final answer
    x = 55,196.50

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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.