Home / 79,517.07-109,689.51-50,392.10

Finding the Fourth Proportional to 79,517.07, 109,689.51 and 50,392.10

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Solution

The fourth proportional to 79,517.07, 109,689.51 and 50,392.10 is: 69,513.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.07 : 109,689.51 = 50,392.10 : x
  2. Step 2: Convert to fraction form
    79,517.07/109,689.51 = 50,392.10/x
  3. Step 3: Cross multiply
    79,517.07x = 109,689.51 × 50,392.10
  4. Step 4: Simplify right side
    79,517.07x = 5,527,484,756.87
  5. Step 5: Solve for x
    x = 5,527,484,756.87/79,517.07
  6. Step 6: Final answer
    x = 69,513.18

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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.