Home / 77,659.21-107,117.01-50,386.56

Finding the Fourth Proportional to 77,659.21, 107,117.01 and 50,386.56

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Solution

The fourth proportional to 77,659.21, 107,117.01 and 50,386.56 is: 69,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,659.21 : 107,117.01 = 50,386.56 : x
  2. Step 2: Convert to fraction form
    77,659.21/107,117.01 = 50,386.56/x
  3. Step 3: Cross multiply
    77,659.21x = 107,117.01 × 50,386.56
  4. Step 4: Simplify right side
    77,659.21x = 5,397,257,651.39
  5. Step 5: Solve for x
    x = 5,397,257,651.39/77,659.21
  6. Step 6: Final answer
    x = 69,499.26

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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.