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Finding the Fourth Proportional to 70,127.08, 105,221.45 and 36,839.41

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Solution

The fourth proportional to 70,127.08, 105,221.45 and 36,839.41 is: 55,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.08 : 105,221.45 = 36,839.41 : x
  2. Step 2: Convert to fraction form
    70,127.08/105,221.45 = 36,839.41/x
  3. Step 3: Cross multiply
    70,127.08x = 105,221.45 × 36,839.41
  4. Step 4: Simplify right side
    70,127.08x = 3,876,296,137.34
  5. Step 5: Solve for x
    x = 3,876,296,137.34/70,127.08
  6. Step 6: Final answer
    x = 55,275.31

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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.