Home / 86,871.06-130,218.30-34,208.10

Finding the Fourth Proportional to 86,871.06, 130,218.30 and 34,208.10

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Solution

The fourth proportional to 86,871.06, 130,218.30 and 34,208.10 is: 51,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,871.06 : 130,218.30 = 34,208.10 : x
  2. Step 2: Convert to fraction form
    86,871.06/130,218.30 = 34,208.10/x
  3. Step 3: Cross multiply
    86,871.06x = 130,218.30 × 34,208.10
  4. Step 4: Simplify right side
    86,871.06x = 4,454,520,628.23
  5. Step 5: Solve for x
    x = 4,454,520,628.23/86,871.06
  6. Step 6: Final answer
    x = 51,277.38

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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.