Home / 86,528.14-129,872.40-53,313.10

Finding the Fourth Proportional to 86,528.14, 129,872.40 and 53,313.10

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Solution

The fourth proportional to 86,528.14, 129,872.40 and 53,313.10 is: 80,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,528.14 : 129,872.40 = 53,313.10 : x
  2. Step 2: Convert to fraction form
    86,528.14/129,872.40 = 53,313.10/x
  3. Step 3: Cross multiply
    86,528.14x = 129,872.40 × 53,313.10
  4. Step 4: Simplify right side
    86,528.14x = 6,923,900,248.44
  5. Step 5: Solve for x
    x = 6,923,900,248.44/86,528.14
  6. Step 6: Final answer
    x = 80,019.06

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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.