Home / 86,827.24-130,251.32-30,655.80

Finding the Fourth Proportional to 86,827.24, 130,251.32 and 30,655.80

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Solution

The fourth proportional to 86,827.24, 130,251.32 and 30,655.80 is: 45,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,827.24 : 130,251.32 = 30,655.80 : x
  2. Step 2: Convert to fraction form
    86,827.24/130,251.32 = 30,655.80/x
  3. Step 3: Cross multiply
    86,827.24x = 130,251.32 × 30,655.80
  4. Step 4: Simplify right side
    86,827.24x = 3,992,958,415.66
  5. Step 5: Solve for x
    x = 3,992,958,415.66/86,827.24
  6. Step 6: Final answer
    x = 45,987.39

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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.