Home / 45,767.75-68,649.57-12,487.70

Finding the Fourth Proportional to 45,767.75, 68,649.57 and 12,487.70

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Solution

The fourth proportional to 45,767.75, 68,649.57 and 12,487.70 is: 18,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,767.75 : 68,649.57 = 12,487.70 : x
  2. Step 2: Convert to fraction form
    45,767.75/68,649.57 = 12,487.70/x
  3. Step 3: Cross multiply
    45,767.75x = 68,649.57 × 12,487.70
  4. Step 4: Simplify right side
    45,767.75x = 857,275,406.91
  5. Step 5: Solve for x
    x = 857,275,406.91/45,767.75
  6. Step 6: Final answer
    x = 18,731.00

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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.