Home / 86,086.40-129,137.04-23,756.90

Finding the Fourth Proportional to 86,086.40, 129,137.04 and 23,756.90

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Solution

The fourth proportional to 86,086.40, 129,137.04 and 23,756.90 is: 35,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,086.40 : 129,137.04 = 23,756.90 : x
  2. Step 2: Convert to fraction form
    86,086.40/129,137.04 = 23,756.90/x
  3. Step 3: Cross multiply
    86,086.40x = 129,137.04 × 23,756.90
  4. Step 4: Simplify right side
    86,086.40x = 3,067,895,099.89
  5. Step 5: Solve for x
    x = 3,067,895,099.89/86,086.40
  6. Step 6: Final answer
    x = 35,637.40

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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.