Home / 68,292.16-102,453.28-20,907.61

Finding the Fourth Proportional to 68,292.16, 102,453.28 and 20,907.61

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Solution

The fourth proportional to 68,292.16, 102,453.28 and 20,907.61 is: 31,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,292.16 : 102,453.28 = 20,907.61 : x
  2. Step 2: Convert to fraction form
    68,292.16/102,453.28 = 20,907.61/x
  3. Step 3: Cross multiply
    68,292.16x = 102,453.28 × 20,907.61
  4. Step 4: Simplify right side
    68,292.16x = 2,142,052,709.19
  5. Step 5: Solve for x
    x = 2,142,052,709.19/68,292.16
  6. Step 6: Final answer
    x = 31,366.01

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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.