Home / 86,650.21-129,974.91-23,470.21

Finding the Fourth Proportional to 86,650.21, 129,974.91 and 23,470.21

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Solution

The fourth proportional to 86,650.21, 129,974.91 and 23,470.21 is: 35,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,650.21 : 129,974.91 = 23,470.21 : x
  2. Step 2: Convert to fraction form
    86,650.21/129,974.91 = 23,470.21/x
  3. Step 3: Cross multiply
    86,650.21x = 129,974.91 × 23,470.21
  4. Step 4: Simplify right side
    86,650.21x = 3,050,538,122.72
  5. Step 5: Solve for x
    x = 3,050,538,122.72/86,650.21
  6. Step 6: Final answer
    x = 35,205.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.