Home / 86,645.06-129,985.80-49,222.44

Finding the Fourth Proportional to 86,645.06, 129,985.80 and 49,222.44

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Solution

The fourth proportional to 86,645.06, 129,985.80 and 49,222.44 is: 73,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.06 : 129,985.80 = 49,222.44 : x
  2. Step 2: Convert to fraction form
    86,645.06/129,985.80 = 49,222.44/x
  3. Step 3: Cross multiply
    86,645.06x = 129,985.80 × 49,222.44
  4. Step 4: Simplify right side
    86,645.06x = 6,398,218,241.35
  5. Step 5: Solve for x
    x = 6,398,218,241.35/86,645.06
  6. Step 6: Final answer
    x = 73,844.01

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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.