Home / 86,577.06-129,816.97-30,401.53

Finding the Fourth Proportional to 86,577.06, 129,816.97 and 30,401.53

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Solution

The fourth proportional to 86,577.06, 129,816.97 and 30,401.53 is: 45,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,577.06 : 129,816.97 = 30,401.53 : x
  2. Step 2: Convert to fraction form
    86,577.06/129,816.97 = 30,401.53/x
  3. Step 3: Cross multiply
    86,577.06x = 129,816.97 × 30,401.53
  4. Step 4: Simplify right side
    86,577.06x = 3,946,634,507.96
  5. Step 5: Solve for x
    x = 3,946,634,507.96/86,577.06
  6. Step 6: Final answer
    x = 45,585.22

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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.