Home / 68,126.72-102,100.08-52,271.12

Finding the Fourth Proportional to 68,126.72, 102,100.08 and 52,271.12

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Solution

The fourth proportional to 68,126.72, 102,100.08 and 52,271.12 is: 78,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,126.72 : 102,100.08 = 52,271.12 : x
  2. Step 2: Convert to fraction form
    68,126.72/102,100.08 = 52,271.12/x
  3. Step 3: Cross multiply
    68,126.72x = 102,100.08 × 52,271.12
  4. Step 4: Simplify right side
    68,126.72x = 5,336,885,533.69
  5. Step 5: Solve for x
    x = 5,336,885,533.69/68,126.72
  6. Step 6: Final answer
    x = 78,337.63

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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.