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Finding the Fourth Proportional to 86,807.88, 130,221.36 and 27,629.69

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Solution

The fourth proportional to 86,807.88, 130,221.36 and 27,629.69 is: 41,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,807.88 : 130,221.36 = 27,629.69 : x
  2. Step 2: Convert to fraction form
    86,807.88/130,221.36 = 27,629.69/x
  3. Step 3: Cross multiply
    86,807.88x = 130,221.36 × 27,629.69
  4. Step 4: Simplify right side
    86,807.88x = 3,597,975,808.18
  5. Step 5: Solve for x
    x = 3,597,975,808.18/86,807.88
  6. Step 6: Final answer
    x = 41,447.57

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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.