Home / 85,263.72-127,786.13-40,823.88

Finding the Fourth Proportional to 85,263.72, 127,786.13 and 40,823.88

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Solution

The fourth proportional to 85,263.72, 127,786.13 and 40,823.88 is: 61,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263.72 : 127,786.13 = 40,823.88 : x
  2. Step 2: Convert to fraction form
    85,263.72/127,786.13 = 40,823.88/x
  3. Step 3: Cross multiply
    85,263.72x = 127,786.13 × 40,823.88
  4. Step 4: Simplify right side
    85,263.72x = 5,216,725,432.67
  5. Step 5: Solve for x
    x = 5,216,725,432.67/85,263.72
  6. Step 6: Final answer
    x = 61,183.41

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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.