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Finding the Fourth Proportional to 72,857.34, 100,541.52 and 40,591.92

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Solution

The fourth proportional to 72,857.34, 100,541.52 and 40,591.92 is: 56,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,857.34 : 100,541.52 = 40,591.92 : x
  2. Step 2: Convert to fraction form
    72,857.34/100,541.52 = 40,591.92/x
  3. Step 3: Cross multiply
    72,857.34x = 100,541.52 × 40,591.92
  4. Step 4: Simplify right side
    72,857.34x = 4,081,172,764.68
  5. Step 5: Solve for x
    x = 4,081,172,764.68/72,857.34
  6. Step 6: Final answer
    x = 56,015.94

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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.