Home / 86,821.88-130,064.30-63,984.25

Finding the Fourth Proportional to 86,821.88, 130,064.30 and 63,984.25

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Solution

The fourth proportional to 86,821.88, 130,064.30 and 63,984.25 is: 95,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,821.88 : 130,064.30 = 63,984.25 : x
  2. Step 2: Convert to fraction form
    86,821.88/130,064.30 = 63,984.25/x
  3. Step 3: Cross multiply
    86,821.88x = 130,064.30 × 63,984.25
  4. Step 4: Simplify right side
    86,821.88x = 8,322,066,687.28
  5. Step 5: Solve for x
    x = 8,322,066,687.28/86,821.88
  6. Step 6: Final answer
    x = 95,852.18

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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.