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Finding the Third Proportional to 40,316.06 and 79,639.88

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Solution

The third proportional to 40,316.06 and 79,639.88 is: 157,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,316.06 : 79,639.88 = 79,639.88 : x
  2. Step 2: Convert to fraction form
    40,316.06/79,639.88 = 79,639.88/x
  3. Step 3: Cross multiply
    40,316.06x = 79,639.88 × 79,639.88
  4. Step 4: Simplify right side
    40,316.06x = 6,342,509,690.02
  5. Step 5: Solve for x
    x = 6,342,509,690.02/40,316.06
  6. Step 6: Final answer
    x = 157,319.67

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.