Home / 77,405.14-106,718.88-50,132.71

Finding the Fourth Proportional to 77,405.14, 106,718.88 and 50,132.71

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Solution

The fourth proportional to 77,405.14, 106,718.88 and 50,132.71 is: 69,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,405.14 : 106,718.88 = 50,132.71 : x
  2. Step 2: Convert to fraction form
    77,405.14/106,718.88 = 50,132.71/x
  3. Step 3: Cross multiply
    77,405.14x = 106,718.88 × 50,132.71
  4. Step 4: Simplify right side
    77,405.14x = 5,350,106,662.56
  5. Step 5: Solve for x
    x = 5,350,106,662.56/77,405.14
  6. Step 6: Final answer
    x = 69,118.24

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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.