Home / 89,917.46-134,959-45,575.64

Finding the Fourth Proportional to 89,917.46, 134,959 and 45,575.64

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Solution

The fourth proportional to 89,917.46, 134,959 and 45,575.64 is: 68,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,917.46 : 134,959 = 45,575.64 : x
  2. Step 2: Convert to fraction form
    89,917.46/134,959 = 45,575.64/x
  3. Step 3: Cross multiply
    89,917.46x = 134,959 × 45,575.64
  4. Step 4: Simplify right side
    89,917.46x = 6,150,842,798.76
  5. Step 5: Solve for x
    x = 6,150,842,798.76/89,917.46
  6. Step 6: Final answer
    x = 68,405.43

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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.