Home / 68,235.51-102,339.15-18,303.74

Finding the Fourth Proportional to 68,235.51, 102,339.15 and 18,303.74

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Solution

The fourth proportional to 68,235.51, 102,339.15 and 18,303.74 is: 27,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,235.51 : 102,339.15 = 18,303.74 : x
  2. Step 2: Convert to fraction form
    68,235.51/102,339.15 = 18,303.74/x
  3. Step 3: Cross multiply
    68,235.51x = 102,339.15 × 18,303.74
  4. Step 4: Simplify right side
    68,235.51x = 1,873,189,193.42
  5. Step 5: Solve for x
    x = 1,873,189,193.42/68,235.51
  6. Step 6: Final answer
    x = 27,451.82

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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.