Home / 86,597.20-129,895.80-60,331.60

Finding the Fourth Proportional to 86,597.20, 129,895.80 and 60,331.60

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Solution

The fourth proportional to 86,597.20, 129,895.80 and 60,331.60 is: 90,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,597.20 : 129,895.80 = 60,331.60 : x
  2. Step 2: Convert to fraction form
    86,597.20/129,895.80 = 60,331.60/x
  3. Step 3: Cross multiply
    86,597.20x = 129,895.80 × 60,331.60
  4. Step 4: Simplify right side
    86,597.20x = 7,836,821,447.28
  5. Step 5: Solve for x
    x = 7,836,821,447.28/86,597.20
  6. Step 6: Final answer
    x = 90,497.40

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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.