Home / 89,030.88-133,611.66-71,709.84

Finding the Fourth Proportional to 89,030.88, 133,611.66 and 71,709.84

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Solution

The fourth proportional to 89,030.88, 133,611.66 and 71,709.84 is: 107,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.88 : 133,611.66 = 71,709.84 : x
  2. Step 2: Convert to fraction form
    89,030.88/133,611.66 = 71,709.84/x
  3. Step 3: Cross multiply
    89,030.88x = 133,611.66 × 71,709.84
  4. Step 4: Simplify right side
    89,030.88x = 9,581,270,760.73
  5. Step 5: Solve for x
    x = 9,581,270,760.73/89,030.88
  6. Step 6: Final answer
    x = 107,617.39

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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.