Home / 84,019.58-126,029.40-57,644.36

Finding the Fourth Proportional to 84,019.58, 126,029.40 and 57,644.36

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Solution

The fourth proportional to 84,019.58, 126,029.40 and 57,644.36 is: 86,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,019.58 : 126,029.40 = 57,644.36 : x
  2. Step 2: Convert to fraction form
    84,019.58/126,029.40 = 57,644.36/x
  3. Step 3: Cross multiply
    84,019.58x = 126,029.40 × 57,644.36
  4. Step 4: Simplify right side
    84,019.58x = 7,264,884,104.18
  5. Step 5: Solve for x
    x = 7,264,884,104.18/84,019.58
  6. Step 6: Final answer
    x = 86,466.56

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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.