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Finding the Fourth Proportional to 73,873.49, 102,633.67 and 72,987.76

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Solution

The fourth proportional to 73,873.49, 102,633.67 and 72,987.76 is: 101,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,873.49 : 102,633.67 = 72,987.76 : x
  2. Step 2: Convert to fraction form
    73,873.49/102,633.67 = 72,987.76/x
  3. Step 3: Cross multiply
    73,873.49x = 102,633.67 × 72,987.76
  4. Step 4: Simplify right side
    73,873.49x = 7,491,001,673.88
  5. Step 5: Solve for x
    x = 7,491,001,673.88/73,873.49
  6. Step 6: Final answer
    x = 101,403.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.