Home / 86,829.16-130,239.79-36,207.29

Finding the Fourth Proportional to 86,829.16, 130,239.79 and 36,207.29

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Solution

The fourth proportional to 86,829.16, 130,239.79 and 36,207.29 is: 54,309.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,829.16 : 130,239.79 = 36,207.29 : x
  2. Step 2: Convert to fraction form
    86,829.16/130,239.79 = 36,207.29/x
  3. Step 3: Cross multiply
    86,829.16x = 130,239.79 × 36,207.29
  4. Step 4: Simplify right side
    86,829.16x = 4,715,630,081.15
  5. Step 5: Solve for x
    x = 4,715,630,081.15/86,829.16
  6. Step 6: Final answer
    x = 54,309.29

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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.