Home / 323,342.48-484,948.11-86,629.80

Finding the Fourth Proportional to 323,342.48, 484,948.11 and 86,629.80

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Solution

The fourth proportional to 323,342.48, 484,948.11 and 86,629.80 is: 129,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,342.48 : 484,948.11 = 86,629.80 : x
  2. Step 2: Convert to fraction form
    323,342.48/484,948.11 = 86,629.80/x
  3. Step 3: Cross multiply
    323,342.48x = 484,948.11 × 86,629.80
  4. Step 4: Simplify right side
    323,342.48x = 42,010,959,923.10
  5. Step 5: Solve for x
    x = 42,010,959,923.10/323,342.48
  6. Step 6: Final answer
    x = 129,927.13

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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.