Home / 77,404.12-106,718.80-50,132.02

Finding the Fourth Proportional to 77,404.12, 106,718.80 and 50,132.02

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Solution

The fourth proportional to 77,404.12, 106,718.80 and 50,132.02 is: 69,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,404.12 : 106,718.80 = 50,132.02 : x
  2. Step 2: Convert to fraction form
    77,404.12/106,718.80 = 50,132.02/x
  3. Step 3: Cross multiply
    77,404.12x = 106,718.80 × 50,132.02
  4. Step 4: Simplify right side
    77,404.12x = 5,350,028,231.72
  5. Step 5: Solve for x
    x = 5,350,028,231.72/77,404.12
  6. Step 6: Final answer
    x = 69,118.14

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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.