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Finding the Third Proportional to 40,572 and 87,990.75

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Solution

The third proportional to 40,572 and 87,990.75 is: 190,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,572 : 87,990.75 = 87,990.75 : x
  2. Step 2: Convert to fraction form
    40,572/87,990.75 = 87,990.75/x
  3. Step 3: Cross multiply
    40,572x = 87,990.75 × 87,990.75
  4. Step 4: Simplify right side
    40,572x = 7,742,372,085.56
  5. Step 5: Solve for x
    x = 7,742,372,085.56/40,572
  6. Step 6: Final answer
    x = 190,830.43

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.