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Finding the Fourth Proportional to 86,830.16, 130,241.29 and 36,208.29

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Solution

The fourth proportional to 86,830.16, 130,241.29 and 36,208.29 is: 54,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,830.16 : 130,241.29 = 36,208.29 : x
  2. Step 2: Convert to fraction form
    86,830.16/130,241.29 = 36,208.29/x
  3. Step 3: Cross multiply
    86,830.16x = 130,241.29 × 36,208.29
  4. Step 4: Simplify right side
    86,830.16x = 4,715,814,398.29
  5. Step 5: Solve for x
    x = 4,715,814,398.29/86,830.16
  6. Step 6: Final answer
    x = 54,310.79

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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.