Home / 86,142.16-129,081.34-57,957.80

Finding the Fourth Proportional to 86,142.16, 129,081.34 and 57,957.80

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Solution

The fourth proportional to 86,142.16, 129,081.34 and 57,957.80 is: 86,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,142.16 : 129,081.34 = 57,957.80 : x
  2. Step 2: Convert to fraction form
    86,142.16/129,081.34 = 57,957.80/x
  3. Step 3: Cross multiply
    86,142.16x = 129,081.34 × 57,957.80
  4. Step 4: Simplify right side
    86,142.16x = 7,481,270,665.26
  5. Step 5: Solve for x
    x = 7,481,270,665.26/86,142.16
  6. Step 6: Final answer
    x = 86,847.96

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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.