Home / 72,786.07-100,444.57-40,954.97

Finding the Fourth Proportional to 72,786.07, 100,444.57 and 40,954.97

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Solution

The fourth proportional to 72,786.07, 100,444.57 and 40,954.97 is: 56,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,786.07 : 100,444.57 = 40,954.97 : x
  2. Step 2: Convert to fraction form
    72,786.07/100,444.57 = 40,954.97/x
  3. Step 3: Cross multiply
    72,786.07x = 100,444.57 × 40,954.97
  4. Step 4: Simplify right side
    72,786.07x = 4,113,704,499.74
  5. Step 5: Solve for x
    x = 4,113,704,499.74/72,786.07
  6. Step 6: Final answer
    x = 56,517.74

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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.