Home / 68,110.30-102,165.45-30,688.30

Finding the Fourth Proportional to 68,110.30, 102,165.45 and 30,688.30

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Solution

The fourth proportional to 68,110.30, 102,165.45 and 30,688.30 is: 46,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110.30 : 102,165.45 = 30,688.30 : x
  2. Step 2: Convert to fraction form
    68,110.30/102,165.45 = 30,688.30/x
  3. Step 3: Cross multiply
    68,110.30x = 102,165.45 × 30,688.30
  4. Step 4: Simplify right side
    68,110.30x = 3,135,283,979.24
  5. Step 5: Solve for x
    x = 3,135,283,979.24/68,110.30
  6. Step 6: Final answer
    x = 46,032.45

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1.5x scale

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.