Home / 86,388.80-129,585.24-23,209.00

Finding the Fourth Proportional to 86,388.80, 129,585.24 and 23,209.00

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Solution

The fourth proportional to 86,388.80, 129,585.24 and 23,209.00 is: 34,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,388.80 : 129,585.24 = 23,209.00 : x
  2. Step 2: Convert to fraction form
    86,388.80/129,585.24 = 23,209.00/x
  3. Step 3: Cross multiply
    86,388.80x = 129,585.24 × 23,209.00
  4. Step 4: Simplify right side
    86,388.80x = 3,007,543,187.23
  5. Step 5: Solve for x
    x = 3,007,543,187.23/86,388.80
  6. Step 6: Final answer
    x = 34,814.04

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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.