Home / 90,063.11-135,094.48-84,582.62

Finding the Fourth Proportional to 90,063.11, 135,094.48 and 84,582.62

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Solution

The fourth proportional to 90,063.11, 135,094.48 and 84,582.62 is: 126,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,063.11 : 135,094.48 = 84,582.62 : x
  2. Step 2: Convert to fraction form
    90,063.11/135,094.48 = 84,582.62/x
  3. Step 3: Cross multiply
    90,063.11x = 135,094.48 × 84,582.62
  4. Step 4: Simplify right side
    90,063.11x = 11,426,645,192.22
  5. Step 5: Solve for x
    x = 11,426,645,192.22/90,063.11
  6. Step 6: Final answer
    x = 126,873.75

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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.