Home / 68,122.07-102,200.39-21,375.35

Finding the Fourth Proportional to 68,122.07, 102,200.39 and 21,375.35

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Solution

The fourth proportional to 68,122.07, 102,200.39 and 21,375.35 is: 32,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,122.07 : 102,200.39 = 21,375.35 : x
  2. Step 2: Convert to fraction form
    68,122.07/102,200.39 = 21,375.35/x
  3. Step 3: Cross multiply
    68,122.07x = 102,200.39 × 21,375.35
  4. Step 4: Simplify right side
    68,122.07x = 2,184,569,106.39
  5. Step 5: Solve for x
    x = 2,184,569,106.39/68,122.07
  6. Step 6: Final answer
    x = 32,068.45

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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.