Home / 86,765.49-130,060.76-65,945.25

Finding the Fourth Proportional to 86,765.49, 130,060.76 and 65,945.25

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Solution

The fourth proportional to 86,765.49, 130,060.76 and 65,945.25 is: 98,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,765.49 : 130,060.76 = 65,945.25 : x
  2. Step 2: Convert to fraction form
    86,765.49/130,060.76 = 65,945.25/x
  3. Step 3: Cross multiply
    86,765.49x = 130,060.76 × 65,945.25
  4. Step 4: Simplify right side
    86,765.49x = 8,576,889,003.66
  5. Step 5: Solve for x
    x = 8,576,889,003.66/86,765.49
  6. Step 6: Final answer
    x = 98,851.39

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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.