Home / 77,574.82-107,021.37-49,270.18

Finding the Fourth Proportional to 77,574.82, 107,021.37 and 49,270.18

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Solution

The fourth proportional to 77,574.82, 107,021.37 and 49,270.18 is: 67,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,574.82 : 107,021.37 = 49,270.18 : x
  2. Step 2: Convert to fraction form
    77,574.82/107,021.37 = 49,270.18/x
  3. Step 3: Cross multiply
    77,574.82x = 107,021.37 × 49,270.18
  4. Step 4: Simplify right side
    77,574.82x = 5,272,962,163.75
  5. Step 5: Solve for x
    x = 5,272,962,163.75/77,574.82
  6. Step 6: Final answer
    x = 67,972.60

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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.