Home / 90,784.36-136,180.17-31,626.01

Finding the Fourth Proportional to 90,784.36, 136,180.17 and 31,626.01

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Solution

The fourth proportional to 90,784.36, 136,180.17 and 31,626.01 is: 47,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,784.36 : 136,180.17 = 31,626.01 : x
  2. Step 2: Convert to fraction form
    90,784.36/136,180.17 = 31,626.01/x
  3. Step 3: Cross multiply
    90,784.36x = 136,180.17 × 31,626.01
  4. Step 4: Simplify right side
    90,784.36x = 4,306,835,418.22
  5. Step 5: Solve for x
    x = 4,306,835,418.22/90,784.36
  6. Step 6: Final answer
    x = 47,440.28

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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.