Home / 86,283.48-129,456.18-33,730.68

Finding the Fourth Proportional to 86,283.48, 129,456.18 and 33,730.68

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Solution

The fourth proportional to 86,283.48, 129,456.18 and 33,730.68 is: 50,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,283.48 : 129,456.18 = 33,730.68 : x
  2. Step 2: Convert to fraction form
    86,283.48/129,456.18 = 33,730.68/x
  3. Step 3: Cross multiply
    86,283.48x = 129,456.18 × 33,730.68
  4. Step 4: Simplify right side
    86,283.48x = 4,366,644,981.60
  5. Step 5: Solve for x
    x = 4,366,644,981.60/86,283.48
  6. Step 6: Final answer
    x = 50,608.12

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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.