Home / 86,333.96-129,506.16-27,171.56

Finding the Fourth Proportional to 86,333.96, 129,506.16 and 27,171.56

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Solution

The fourth proportional to 86,333.96, 129,506.16 and 27,171.56 is: 40,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,333.96 : 129,506.16 = 27,171.56 : x
  2. Step 2: Convert to fraction form
    86,333.96/129,506.16 = 27,171.56/x
  3. Step 3: Cross multiply
    86,333.96x = 129,506.16 × 27,171.56
  4. Step 4: Simplify right side
    86,333.96x = 3,518,884,396.81
  5. Step 5: Solve for x
    x = 3,518,884,396.81/86,333.96
  6. Step 6: Final answer
    x = 40,758.98

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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.