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Finding the Fourth Proportional to 72,497.77, 100,046.77 and 40,237.34

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Solution

The fourth proportional to 72,497.77, 100,046.77 and 40,237.34 is: 55,527.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497.77 : 100,046.77 = 40,237.34 : x
  2. Step 2: Convert to fraction form
    72,497.77/100,046.77 = 40,237.34/x
  3. Step 3: Cross multiply
    72,497.77x = 100,046.77 × 40,237.34
  4. Step 4: Simplify right side
    72,497.77x = 4,025,615,900.39
  5. Step 5: Solve for x
    x = 4,025,615,900.39/72,497.77
  6. Step 6: Final answer
    x = 55,527.44

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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.