Home / 90,835.92-136,291.32-40,208.40

Finding the Fourth Proportional to 90,835.92, 136,291.32 and 40,208.40

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Solution

The fourth proportional to 90,835.92, 136,291.32 and 40,208.40 is: 60,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835.92 : 136,291.32 = 40,208.40 : x
  2. Step 2: Convert to fraction form
    90,835.92/136,291.32 = 40,208.40/x
  3. Step 3: Cross multiply
    90,835.92x = 136,291.32 × 40,208.40
  4. Step 4: Simplify right side
    90,835.92x = 5,480,055,911.09
  5. Step 5: Solve for x
    x = 5,480,055,911.09/90,835.92
  6. Step 6: Final answer
    x = 60,329.17

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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.