Home / 86,323.73-129,343.03-39,473.33

Finding the Fourth Proportional to 86,323.73, 129,343.03 and 39,473.33

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Solution

The fourth proportional to 86,323.73, 129,343.03 and 39,473.33 is: 59,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,323.73 : 129,343.03 = 39,473.33 : x
  2. Step 2: Convert to fraction form
    86,323.73/129,343.03 = 39,473.33/x
  3. Step 3: Cross multiply
    86,323.73x = 129,343.03 × 39,473.33
  4. Step 4: Simplify right side
    86,323.73x = 5,105,599,360.99
  5. Step 5: Solve for x
    x = 5,105,599,360.99/86,323.73
  6. Step 6: Final answer
    x = 59,144.80

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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.