Home / 68,062.10-102,129.60-28,623.20

Finding the Fourth Proportional to 68,062.10, 102,129.60 and 28,623.20

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Solution

The fourth proportional to 68,062.10, 102,129.60 and 28,623.20 is: 42,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,062.10 : 102,129.60 = 28,623.20 : x
  2. Step 2: Convert to fraction form
    68,062.10/102,129.60 = 28,623.20/x
  3. Step 3: Cross multiply
    68,062.10x = 102,129.60 × 28,623.20
  4. Step 4: Simplify right side
    68,062.10x = 2,923,275,966.72
  5. Step 5: Solve for x
    x = 2,923,275,966.72/68,062.10
  6. Step 6: Final answer
    x = 42,950.13

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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.