Home / 89,649.12-134,486.01-30,468.90

Finding the Fourth Proportional to 89,649.12, 134,486.01 and 30,468.90

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Solution

The fourth proportional to 89,649.12, 134,486.01 and 30,468.90 is: 45,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,649.12 : 134,486.01 = 30,468.90 : x
  2. Step 2: Convert to fraction form
    89,649.12/134,486.01 = 30,468.90/x
  3. Step 3: Cross multiply
    89,649.12x = 134,486.01 × 30,468.90
  4. Step 4: Simplify right side
    89,649.12x = 4,097,640,790.09
  5. Step 5: Solve for x
    x = 4,097,640,790.09/89,649.12
  6. Step 6: Final answer
    x = 45,707.54

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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.