Home / 86,220.29-129,292.73-43,499.43

Finding the Fourth Proportional to 86,220.29, 129,292.73 and 43,499.43

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Solution

The fourth proportional to 86,220.29, 129,292.73 and 43,499.43 is: 65,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,220.29 : 129,292.73 = 43,499.43 : x
  2. Step 2: Convert to fraction form
    86,220.29/129,292.73 = 43,499.43/x
  3. Step 3: Cross multiply
    86,220.29x = 129,292.73 × 43,499.43
  4. Step 4: Simplify right side
    86,220.29x = 5,624,159,840.65
  5. Step 5: Solve for x
    x = 5,624,159,840.65/86,220.29
  6. Step 6: Final answer
    x = 65,230.12

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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.