Home / 86,623.56-129,881.88-34,009.20

Finding the Fourth Proportional to 86,623.56, 129,881.88 and 34,009.20

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Solution

The fourth proportional to 86,623.56, 129,881.88 and 34,009.20 is: 50,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.56 : 129,881.88 = 34,009.20 : x
  2. Step 2: Convert to fraction form
    86,623.56/129,881.88 = 34,009.20/x
  3. Step 3: Cross multiply
    86,623.56x = 129,881.88 × 34,009.20
  4. Step 4: Simplify right side
    86,623.56x = 4,417,178,833.30
  5. Step 5: Solve for x
    x = 4,417,178,833.30/86,623.56
  6. Step 6: Final answer
    x = 50,992.81

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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.