Home / 86,940.13-130,456.37-34,350.07

Finding the Fourth Proportional to 86,940.13, 130,456.37 and 34,350.07

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Solution

The fourth proportional to 86,940.13, 130,456.37 and 34,350.07 is: 51,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,940.13 : 130,456.37 = 34,350.07 : x
  2. Step 2: Convert to fraction form
    86,940.13/130,456.37 = 34,350.07/x
  3. Step 3: Cross multiply
    86,940.13x = 130,456.37 × 34,350.07
  4. Step 4: Simplify right side
    86,940.13x = 4,481,185,269.70
  5. Step 5: Solve for x
    x = 4,481,185,269.70/86,940.13
  6. Step 6: Final answer
    x = 51,543.35

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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.