Home / 86,269.04-129,359.52-39,481.80

Finding the Fourth Proportional to 86,269.04, 129,359.52 and 39,481.80

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Solution

The fourth proportional to 86,269.04, 129,359.52 and 39,481.80 is: 59,202.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,269.04 : 129,359.52 = 39,481.80 : x
  2. Step 2: Convert to fraction form
    86,269.04/129,359.52 = 39,481.80/x
  3. Step 3: Cross multiply
    86,269.04x = 129,359.52 × 39,481.80
  4. Step 4: Simplify right side
    86,269.04x = 5,107,346,696.74
  5. Step 5: Solve for x
    x = 5,107,346,696.74/86,269.04
  6. Step 6: Final answer
    x = 59,202.54

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1.5x scale

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.