Home / 89,031.07-133,611.94-71,710.03

Finding the Fourth Proportional to 89,031.07, 133,611.94 and 71,710.03

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Solution

The fourth proportional to 89,031.07, 133,611.94 and 71,710.03 is: 107,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.07 : 133,611.94 = 71,710.03 : x
  2. Step 2: Convert to fraction form
    89,031.07/133,611.94 = 71,710.03/x
  3. Step 3: Cross multiply
    89,031.07x = 133,611.94 × 71,710.03
  4. Step 4: Simplify right side
    89,031.07x = 9,581,315,981.37
  5. Step 5: Solve for x
    x = 9,581,315,981.37/89,031.07
  6. Step 6: Final answer
    x = 107,617.67

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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.