Home / 90,066.65-135,184.64-45,725.22

Finding the Fourth Proportional to 90,066.65, 135,184.64 and 45,725.22

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Solution

The fourth proportional to 90,066.65, 135,184.64 and 45,725.22 is: 68,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.65 : 135,184.64 = 45,725.22 : x
  2. Step 2: Convert to fraction form
    90,066.65/135,184.64 = 45,725.22/x
  3. Step 3: Cross multiply
    90,066.65x = 135,184.64 × 45,725.22
  4. Step 4: Simplify right side
    90,066.65x = 6,181,347,175.99
  5. Step 5: Solve for x
    x = 6,181,347,175.99/90,066.65
  6. Step 6: Final answer
    x = 68,630.81

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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.