Home / 42,792.67-64,135.54-20,600.11

Finding the Fourth Proportional to 42,792.67, 64,135.54 and 20,600.11

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Solution

The fourth proportional to 42,792.67, 64,135.54 and 20,600.11 is: 30,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,792.67 : 64,135.54 = 20,600.11 : x
  2. Step 2: Convert to fraction form
    42,792.67/64,135.54 = 20,600.11/x
  3. Step 3: Cross multiply
    42,792.67x = 64,135.54 × 20,600.11
  4. Step 4: Simplify right side
    42,792.67x = 1,321,199,178.91
  5. Step 5: Solve for x
    x = 1,321,199,178.91/42,792.67
  6. Step 6: Final answer
    x = 30,874.43

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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.