Home / 73,865.92-102,623.17-72,980.20

Finding the Fourth Proportional to 73,865.92, 102,623.17 and 72,980.20

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Solution

The fourth proportional to 73,865.92, 102,623.17 and 72,980.20 is: 101,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,865.92 : 102,623.17 = 72,980.20 : x
  2. Step 2: Convert to fraction form
    73,865.92/102,623.17 = 72,980.20/x
  3. Step 3: Cross multiply
    73,865.92x = 102,623.17 × 72,980.20
  4. Step 4: Simplify right side
    73,865.92x = 7,489,459,471.23
  5. Step 5: Solve for x
    x = 7,489,459,471.23/73,865.92
  6. Step 6: Final answer
    x = 101,392.62

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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.