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Finding the Fourth Proportional to 50,753, 70,039.14 and 28,401.32

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Solution

The fourth proportional to 50,753, 70,039.14 and 28,401.32 is: 39,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,753 : 70,039.14 = 28,401.32 : x
  2. Step 2: Convert to fraction form
    50,753/70,039.14 = 28,401.32/x
  3. Step 3: Cross multiply
    50,753x = 70,039.14 × 28,401.32
  4. Step 4: Simplify right side
    50,753x = 1,989,204,027.66
  5. Step 5: Solve for x
    x = 1,989,204,027.66/50,753
  6. Step 6: Final answer
    x = 39,193.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.