Home / 68,129.15-102,193.75-30,682.24

Finding the Fourth Proportional to 68,129.15, 102,193.75 and 30,682.24

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Solution

The fourth proportional to 68,129.15, 102,193.75 and 30,682.24 is: 46,023.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129.15 : 102,193.75 = 30,682.24 : x
  2. Step 2: Convert to fraction form
    68,129.15/102,193.75 = 30,682.24/x
  3. Step 3: Cross multiply
    68,129.15x = 102,193.75 × 30,682.24
  4. Step 4: Simplify right side
    68,129.15x = 3,135,533,521.71
  5. Step 5: Solve for x
    x = 3,135,533,521.71/68,129.15
  6. Step 6: Final answer
    x = 46,023.38

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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.