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Finding the Fourth Proportional to 85,121.52, 127,623.04 and 37,710.88

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Solution

The fourth proportional to 85,121.52, 127,623.04 and 37,710.88 is: 56,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,121.52 : 127,623.04 = 37,710.88 : x
  2. Step 2: Convert to fraction form
    85,121.52/127,623.04 = 37,710.88/x
  3. Step 3: Cross multiply
    85,121.52x = 127,623.04 × 37,710.88
  4. Step 4: Simplify right side
    85,121.52x = 4,812,777,146.68
  5. Step 5: Solve for x
    x = 4,812,777,146.68/85,121.52
  6. Step 6: Final answer
    x = 56,540.08

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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.