Home / 84,383.64-126,584.10-31,837.32

Finding the Fourth Proportional to 84,383.64, 126,584.10 and 31,837.32

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Solution

The fourth proportional to 84,383.64, 126,584.10 and 31,837.32 is: 47,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,383.64 : 126,584.10 = 31,837.32 : x
  2. Step 2: Convert to fraction form
    84,383.64/126,584.10 = 31,837.32/x
  3. Step 3: Cross multiply
    84,383.64x = 126,584.10 × 31,837.32
  4. Step 4: Simplify right side
    84,383.64x = 4,030,098,498.61
  5. Step 5: Solve for x
    x = 4,030,098,498.61/84,383.64
  6. Step 6: Final answer
    x = 47,759.24

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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.