Home / 68,566.14-102,862.08-31,128.84

Finding the Fourth Proportional to 68,566.14, 102,862.08 and 31,128.84

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Solution

The fourth proportional to 68,566.14, 102,862.08 and 31,128.84 is: 46,699.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,566.14 : 102,862.08 = 31,128.84 : x
  2. Step 2: Convert to fraction form
    68,566.14/102,862.08 = 31,128.84/x
  3. Step 3: Cross multiply
    68,566.14x = 102,862.08 × 31,128.84
  4. Step 4: Simplify right side
    68,566.14x = 3,201,977,230.39
  5. Step 5: Solve for x
    x = 3,201,977,230.39/68,566.14
  6. Step 6: Final answer
    x = 46,699.10

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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.