Home / 89,874.12-134,697.78-45,512.04

Finding the Fourth Proportional to 89,874.12, 134,697.78 and 45,512.04

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Solution

The fourth proportional to 89,874.12, 134,697.78 and 45,512.04 is: 68,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,874.12 : 134,697.78 = 45,512.04 : x
  2. Step 2: Convert to fraction form
    89,874.12/134,697.78 = 45,512.04/x
  3. Step 3: Cross multiply
    89,874.12x = 134,697.78 × 45,512.04
  4. Step 4: Simplify right side
    89,874.12x = 6,130,370,751.27
  5. Step 5: Solve for x
    x = 6,130,370,751.27/89,874.12
  6. Step 6: Final answer
    x = 68,210.63

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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.