Home / 90,695.28-136,044.48-31,532.88

Finding the Fourth Proportional to 90,695.28, 136,044.48 and 31,532.88

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Solution

The fourth proportional to 90,695.28, 136,044.48 and 31,532.88 is: 47,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,695.28 : 136,044.48 = 31,532.88 : x
  2. Step 2: Convert to fraction form
    90,695.28/136,044.48 = 31,532.88/x
  3. Step 3: Cross multiply
    90,695.28x = 136,044.48 × 31,532.88
  4. Step 4: Simplify right side
    90,695.28x = 4,289,874,262.50
  5. Step 5: Solve for x
    x = 4,289,874,262.50/90,695.28
  6. Step 6: Final answer
    x = 47,299.86

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1.5x scale

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.