Home / 86,515.12-129,766.20-24,190.48

Finding the Fourth Proportional to 86,515.12, 129,766.20 and 24,190.48

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Solution

The fourth proportional to 86,515.12, 129,766.20 and 24,190.48 is: 36,283.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,515.12 : 129,766.20 = 24,190.48 : x
  2. Step 2: Convert to fraction form
    86,515.12/129,766.20 = 24,190.48/x
  3. Step 3: Cross multiply
    86,515.12x = 129,766.20 × 24,190.48
  4. Step 4: Simplify right side
    86,515.12x = 3,139,106,665.78
  5. Step 5: Solve for x
    x = 3,139,106,665.78/86,515.12
  6. Step 6: Final answer
    x = 36,283.91

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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.