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Finding the Fourth Proportional to 83,219.45, 114,842.84 and 45,493.70

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Solution

The fourth proportional to 83,219.45, 114,842.84 and 45,493.70 is: 62,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,219.45 : 114,842.84 = 45,493.70 : x
  2. Step 2: Convert to fraction form
    83,219.45/114,842.84 = 45,493.70/x
  3. Step 3: Cross multiply
    83,219.45x = 114,842.84 × 45,493.70
  4. Step 4: Simplify right side
    83,219.45x = 5,224,624,908.43
  5. Step 5: Solve for x
    x = 5,224,624,908.43/83,219.45
  6. Step 6: Final answer
    x = 62,781.30

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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.