Home / 90,367.43-135,588.32-39,740.40

Finding the Fourth Proportional to 90,367.43, 135,588.32 and 39,740.40

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Solution

The fourth proportional to 90,367.43, 135,588.32 and 39,740.40 is: 59,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,367.43 : 135,588.32 = 39,740.40 : x
  2. Step 2: Convert to fraction form
    90,367.43/135,588.32 = 39,740.40/x
  3. Step 3: Cross multiply
    90,367.43x = 135,588.32 × 39,740.40
  4. Step 4: Simplify right side
    90,367.43x = 5,388,333,873.43
  5. Step 5: Solve for x
    x = 5,388,333,873.43/90,367.43
  6. Step 6: Final answer
    x = 59,626.95

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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.