Home / 86,591.04-129,839.76-30,416.64

Finding the Fourth Proportional to 86,591.04, 129,839.76 and 30,416.64

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Solution

The fourth proportional to 86,591.04, 129,839.76 and 30,416.64 is: 45,608.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,591.04 : 129,839.76 = 30,416.64 : x
  2. Step 2: Convert to fraction form
    86,591.04/129,839.76 = 30,416.64/x
  3. Step 3: Cross multiply
    86,591.04x = 129,839.76 × 30,416.64
  4. Step 4: Simplify right side
    86,591.04x = 3,949,289,237.61
  5. Step 5: Solve for x
    x = 3,949,289,237.61/86,591.04
  6. Step 6: Final answer
    x = 45,608.52

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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.