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Finding the Fourth Proportional to 64,717.58, 97,076.29 and 20,348.21

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Solution

The fourth proportional to 64,717.58, 97,076.29 and 20,348.21 is: 30,522.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,717.58 : 97,076.29 = 20,348.21 : x
  2. Step 2: Convert to fraction form
    64,717.58/97,076.29 = 20,348.21/x
  3. Step 3: Cross multiply
    64,717.58x = 97,076.29 × 20,348.21
  4. Step 4: Simplify right side
    64,717.58x = 1,975,328,734.94
  5. Step 5: Solve for x
    x = 1,975,328,734.94/64,717.58
  6. Step 6: Final answer
    x = 30,522.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.