Home / 90,295.96-135,354.78-42,827.80

Finding the Fourth Proportional to 90,295.96, 135,354.78 and 42,827.80

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Solution

The fourth proportional to 90,295.96, 135,354.78 and 42,827.80 is: 64,199.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,295.96 : 135,354.78 = 42,827.80 : x
  2. Step 2: Convert to fraction form
    90,295.96/135,354.78 = 42,827.80/x
  3. Step 3: Cross multiply
    90,295.96x = 135,354.78 × 42,827.80
  4. Step 4: Simplify right side
    90,295.96x = 5,796,947,446.88
  5. Step 5: Solve for x
    x = 5,796,947,446.88/90,295.96
  6. Step 6: Final answer
    x = 64,199.41

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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.