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Finding the Fourth Proportional to 85,344.83, 127,977.61 and 49,816.41

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Solution

The fourth proportional to 85,344.83, 127,977.61 and 49,816.41 is: 74,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,344.83 : 127,977.61 = 49,816.41 : x
  2. Step 2: Convert to fraction form
    85,344.83/127,977.61 = 49,816.41/x
  3. Step 3: Cross multiply
    85,344.83x = 127,977.61 × 49,816.41
  4. Step 4: Simplify right side
    85,344.83x = 6,375,385,090.58
  5. Step 5: Solve for x
    x = 6,375,385,090.58/85,344.83
  6. Step 6: Final answer
    x = 74,701.48

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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.