Home / 86,222.87-129,353.76-26,256.71

Finding the Fourth Proportional to 86,222.87, 129,353.76 and 26,256.71

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Solution

The fourth proportional to 86,222.87, 129,353.76 and 26,256.71 is: 39,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,222.87 : 129,353.76 = 26,256.71 : x
  2. Step 2: Convert to fraction form
    86,222.87/129,353.76 = 26,256.71/x
  3. Step 3: Cross multiply
    86,222.87x = 129,353.76 × 26,256.71
  4. Step 4: Simplify right side
    86,222.87x = 3,396,403,759.50
  5. Step 5: Solve for x
    x = 3,396,403,759.50/86,222.87
  6. Step 6: Final answer
    x = 39,390.99

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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.