Home / 89,405.78-134,025.28-30,200.04

Finding the Fourth Proportional to 89,405.78, 134,025.28 and 30,200.04

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Solution

The fourth proportional to 89,405.78, 134,025.28 and 30,200.04 is: 45,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,405.78 : 134,025.28 = 30,200.04 : x
  2. Step 2: Convert to fraction form
    89,405.78/134,025.28 = 30,200.04/x
  3. Step 3: Cross multiply
    89,405.78x = 134,025.28 × 30,200.04
  4. Step 4: Simplify right side
    89,405.78x = 4,047,568,911.39
  5. Step 5: Solve for x
    x = 4,047,568,911.39/89,405.78
  6. Step 6: Final answer
    x = 45,271.90

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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.