Home / 68,458.20-102,697.02-21,077.24

Finding the Fourth Proportional to 68,458.20, 102,697.02 and 21,077.24

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Solution

The fourth proportional to 68,458.20, 102,697.02 and 21,077.24 is: 31,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,458.20 : 102,697.02 = 21,077.24 : x
  2. Step 2: Convert to fraction form
    68,458.20/102,697.02 = 21,077.24/x
  3. Step 3: Cross multiply
    68,458.20x = 102,697.02 × 21,077.24
  4. Step 4: Simplify right side
    68,458.20x = 2,164,569,224.34
  5. Step 5: Solve for x
    x = 2,164,569,224.34/68,458.20
  6. Step 6: Final answer
    x = 31,618.85

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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.