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Finding the Fourth Proportional to 70,127.58, 105,222.21 and 36,839.91

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Solution

The fourth proportional to 70,127.58, 105,222.21 and 36,839.91 is: 55,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.58 : 105,222.21 = 36,839.91 : x
  2. Step 2: Convert to fraction form
    70,127.58/105,222.21 = 36,839.91/x
  3. Step 3: Cross multiply
    70,127.58x = 105,222.21 × 36,839.91
  4. Step 4: Simplify right side
    70,127.58x = 3,876,376,746.40
  5. Step 5: Solve for x
    x = 3,876,376,746.40/70,127.58
  6. Step 6: Final answer
    x = 55,276.07

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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.