Home / 68,565.12-102,860.56-31,127.84

Finding the Fourth Proportional to 68,565.12, 102,860.56 and 31,127.84

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Solution

The fourth proportional to 68,565.12, 102,860.56 and 31,127.84 is: 46,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,565.12 : 102,860.56 = 31,127.84 : x
  2. Step 2: Convert to fraction form
    68,565.12/102,860.56 = 31,127.84/x
  3. Step 3: Cross multiply
    68,565.12x = 102,860.56 × 31,127.84
  4. Step 4: Simplify right side
    68,565.12x = 3,201,827,053.99
  5. Step 5: Solve for x
    x = 3,201,827,053.99/68,565.12
  6. Step 6: Final answer
    x = 46,697.61

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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.