Home / 68,401.12-102,557.27-28,409.13

Finding the Fourth Proportional to 68,401.12, 102,557.27 and 28,409.13

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Solution

The fourth proportional to 68,401.12, 102,557.27 and 28,409.13 is: 42,595.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,401.12 : 102,557.27 = 28,409.13 : x
  2. Step 2: Convert to fraction form
    68,401.12/102,557.27 = 28,409.13/x
  3. Step 3: Cross multiply
    68,401.12x = 102,557.27 × 28,409.13
  4. Step 4: Simplify right side
    68,401.12x = 2,913,562,815.88
  5. Step 5: Solve for x
    x = 2,913,562,815.88/68,401.12
  6. Step 6: Final answer
    x = 42,595.25

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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.