Home / 90,937.92-136,376.96-31,760.32

Finding the Fourth Proportional to 90,937.92, 136,376.96 and 31,760.32

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Solution

The fourth proportional to 90,937.92, 136,376.96 and 31,760.32 is: 47,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,937.92 : 136,376.96 = 31,760.32 : x
  2. Step 2: Convert to fraction form
    90,937.92/136,376.96 = 31,760.32/x
  3. Step 3: Cross multiply
    90,937.92x = 136,376.96 × 31,760.32
  4. Step 4: Simplify right side
    90,937.92x = 4,331,375,890.23
  5. Step 5: Solve for x
    x = 4,331,375,890.23/90,937.92
  6. Step 6: Final answer
    x = 47,630.03

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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.