Home / 90,723.47-125,206.36-49,894.79

Finding the Fourth Proportional to 90,723.47, 125,206.36 and 49,894.79

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Solution

The fourth proportional to 90,723.47, 125,206.36 and 49,894.79 is: 68,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,723.47 : 125,206.36 = 49,894.79 : x
  2. Step 2: Convert to fraction form
    90,723.47/125,206.36 = 49,894.79/x
  3. Step 3: Cross multiply
    90,723.47x = 125,206.36 × 49,894.79
  4. Step 4: Simplify right side
    90,723.47x = 6,247,144,604.50
  5. Step 5: Solve for x
    x = 6,247,144,604.50/90,723.47
  6. Step 6: Final answer
    x = 68,859.19

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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.