Home / 86,369.46-129,543.87-30,205.26

Finding the Fourth Proportional to 86,369.46, 129,543.87 and 30,205.26

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Solution

The fourth proportional to 86,369.46, 129,543.87 and 30,205.26 is: 45,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,369.46 : 129,543.87 = 30,205.26 : x
  2. Step 2: Convert to fraction form
    86,369.46/129,543.87 = 30,205.26/x
  3. Step 3: Cross multiply
    86,369.46x = 129,543.87 × 30,205.26
  4. Step 4: Simplify right side
    86,369.46x = 3,912,906,274.76
  5. Step 5: Solve for x
    x = 3,912,906,274.76/86,369.46
  6. Step 6: Final answer
    x = 45,304.28

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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.