Home / 86,827.35-130,243.68-29,900.64

Finding the Fourth Proportional to 86,827.35, 130,243.68 and 29,900.64

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Solution

The fourth proportional to 86,827.35, 130,243.68 and 29,900.64 is: 44,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,827.35 : 130,243.68 = 29,900.64 : x
  2. Step 2: Convert to fraction form
    86,827.35/130,243.68 = 29,900.64/x
  3. Step 3: Cross multiply
    86,827.35x = 130,243.68 × 29,900.64
  4. Step 4: Simplify right side
    86,827.35x = 3,894,369,387.96
  5. Step 5: Solve for x
    x = 3,894,369,387.96/86,827.35
  6. Step 6: Final answer
    x = 44,851.87

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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.