Home / 68,127.72-102,101.58-52,272.12

Finding the Fourth Proportional to 68,127.72, 102,101.58 and 52,272.12

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Solution

The fourth proportional to 68,127.72, 102,101.58 and 52,272.12 is: 78,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,127.72 : 102,101.58 = 52,272.12 : x
  2. Step 2: Convert to fraction form
    68,127.72/102,101.58 = 52,272.12/x
  3. Step 3: Cross multiply
    68,127.72x = 102,101.58 × 52,272.12
  4. Step 4: Simplify right side
    68,127.72x = 5,337,066,041.95
  5. Step 5: Solve for x
    x = 5,337,066,041.95/68,127.72
  6. Step 6: Final answer
    x = 78,339.13

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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.