Home / 86,687.26-130,134.57-51,643.42

Finding the Fourth Proportional to 86,687.26, 130,134.57 and 51,643.42

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Solution

The fourth proportional to 86,687.26, 130,134.57 and 51,643.42 is: 77,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,687.26 : 130,134.57 = 51,643.42 : x
  2. Step 2: Convert to fraction form
    86,687.26/130,134.57 = 51,643.42/x
  3. Step 3: Cross multiply
    86,687.26x = 130,134.57 × 51,643.42
  4. Step 4: Simplify right side
    86,687.26x = 6,720,594,255.03
  5. Step 5: Solve for x
    x = 6,720,594,255.03/86,687.26
  6. Step 6: Final answer
    x = 77,526.90

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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.