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Finding the Third Proportional to 40,915.13 and 70,890.19

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Solution

The third proportional to 40,915.13 and 70,890.19 is: 122,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.13 : 70,890.19 = 70,890.19 : x
  2. Step 2: Convert to fraction form
    40,915.13/70,890.19 = 70,890.19/x
  3. Step 3: Cross multiply
    40,915.13x = 70,890.19 × 70,890.19
  4. Step 4: Simplify right side
    40,915.13x = 5,025,418,683.79
  5. Step 5: Solve for x
    x = 5,025,418,683.79/40,915.13
  6. Step 6: Final answer
    x = 122,825.45

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.