Home / 86,107.05-118,830.04-52,108.31

Finding the Fourth Proportional to 86,107.05, 118,830.04 and 52,108.31

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Solution

The fourth proportional to 86,107.05, 118,830.04 and 52,108.31 is: 71,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,107.05 : 118,830.04 = 52,108.31 : x
  2. Step 2: Convert to fraction form
    86,107.05/118,830.04 = 52,108.31/x
  3. Step 3: Cross multiply
    86,107.05x = 118,830.04 × 52,108.31
  4. Step 4: Simplify right side
    86,107.05x = 6,192,032,728.44
  5. Step 5: Solve for x
    x = 6,192,032,728.44/86,107.05
  6. Step 6: Final answer
    x = 71,910.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.