Home / 86,664.24-129,996.36-31,260.24

Finding the Fourth Proportional to 86,664.24, 129,996.36 and 31,260.24

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Solution

The fourth proportional to 86,664.24, 129,996.36 and 31,260.24 is: 46,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.24 : 129,996.36 = 31,260.24 : x
  2. Step 2: Convert to fraction form
    86,664.24/129,996.36 = 31,260.24/x
  3. Step 3: Cross multiply
    86,664.24x = 129,996.36 × 31,260.24
  4. Step 4: Simplify right side
    86,664.24x = 4,063,717,412.73
  5. Step 5: Solve for x
    x = 4,063,717,412.73/86,664.24
  6. Step 6: Final answer
    x = 46,890.36

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Similar ratio
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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.