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Finding the Fourth Proportional to 80,142.60, 110,602.31 and 44,333.21

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Solution

The fourth proportional to 80,142.60, 110,602.31 and 44,333.21 is: 61,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142.60 : 110,602.31 = 44,333.21 : x
  2. Step 2: Convert to fraction form
    80,142.60/110,602.31 = 44,333.21/x
  3. Step 3: Cross multiply
    80,142.60x = 110,602.31 × 44,333.21
  4. Step 4: Simplify right side
    80,142.60x = 4,903,354,661.04
  5. Step 5: Solve for x
    x = 4,903,354,661.04/80,142.60
  6. Step 6: Final answer
    x = 61,182.87

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1.5x scale

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.