Home / 89,438.78-134,149.91-30,267.65

Finding the Fourth Proportional to 89,438.78, 134,149.91 and 30,267.65

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Solution

The fourth proportional to 89,438.78, 134,149.91 and 30,267.65 is: 45,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,438.78 : 134,149.91 = 30,267.65 : x
  2. Step 2: Convert to fraction form
    89,438.78/134,149.91 = 30,267.65/x
  3. Step 3: Cross multiply
    89,438.78x = 134,149.91 × 30,267.65
  4. Step 4: Simplify right side
    89,438.78x = 4,060,401,701.32
  5. Step 5: Solve for x
    x = 4,060,401,701.32/89,438.78
  6. Step 6: Final answer
    x = 45,398.67

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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.