Home / 68,077.24-102,115.90-21,333.76

Finding the Fourth Proportional to 68,077.24, 102,115.90 and 21,333.76

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Solution

The fourth proportional to 68,077.24, 102,115.90 and 21,333.76 is: 32,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,077.24 : 102,115.90 = 21,333.76 : x
  2. Step 2: Convert to fraction form
    68,077.24/102,115.90 = 21,333.76/x
  3. Step 3: Cross multiply
    68,077.24x = 102,115.90 × 21,333.76
  4. Step 4: Simplify right side
    68,077.24x = 2,178,516,102.78
  5. Step 5: Solve for x
    x = 2,178,516,102.78/68,077.24
  6. Step 6: Final answer
    x = 32,000.65

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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.