Home / 89,442.78-134,155.90-30,271.65

Finding the Fourth Proportional to 89,442.78, 134,155.90 and 30,271.65

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Solution

The fourth proportional to 89,442.78, 134,155.90 and 30,271.65 is: 45,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,442.78 : 134,155.90 = 30,271.65 : x
  2. Step 2: Convert to fraction form
    89,442.78/134,155.90 = 30,271.65/x
  3. Step 3: Cross multiply
    89,442.78x = 134,155.90 × 30,271.65
  4. Step 4: Simplify right side
    89,442.78x = 4,061,120,450.24
  5. Step 5: Solve for x
    x = 4,061,120,450.24/89,442.78
  6. Step 6: Final answer
    x = 45,404.68

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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.