Home / 50,981.68-70,380.30-31,872.07

Finding the Fourth Proportional to 50,981.68, 70,380.30 and 31,872.07

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Solution

The fourth proportional to 50,981.68, 70,380.30 and 31,872.07 is: 43,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,981.68 : 70,380.30 = 31,872.07 : x
  2. Step 2: Convert to fraction form
    50,981.68/70,380.30 = 31,872.07/x
  3. Step 3: Cross multiply
    50,981.68x = 70,380.30 × 31,872.07
  4. Step 4: Simplify right side
    50,981.68x = 2,243,165,848.22
  5. Step 5: Solve for x
    x = 2,243,165,848.22/50,981.68
  6. Step 6: Final answer
    x = 43,999.45

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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.