Home / 68,025.64-102,038.68-20,641.12

Finding the Fourth Proportional to 68,025.64, 102,038.68 and 20,641.12

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Solution

The fourth proportional to 68,025.64, 102,038.68 and 20,641.12 is: 30,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,025.64 : 102,038.68 = 20,641.12 : x
  2. Step 2: Convert to fraction form
    68,025.64/102,038.68 = 20,641.12/x
  3. Step 3: Cross multiply
    68,025.64x = 102,038.68 × 20,641.12
  4. Step 4: Simplify right side
    68,025.64x = 2,106,192,638.52
  5. Step 5: Solve for x
    x = 2,106,192,638.52/68,025.64
  6. Step 6: Final answer
    x = 30,961.75

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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.