Home / 45,097.80-67,649.66-11,818.68

Finding the Fourth Proportional to 45,097.80, 67,649.66 and 11,818.68

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Solution

The fourth proportional to 45,097.80, 67,649.66 and 11,818.68 is: 17,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,097.80 : 67,649.66 = 11,818.68 : x
  2. Step 2: Convert to fraction form
    45,097.80/67,649.66 = 11,818.68/x
  3. Step 3: Cross multiply
    45,097.80x = 67,649.66 × 11,818.68
  4. Step 4: Simplify right side
    45,097.80x = 799,529,683.65
  5. Step 5: Solve for x
    x = 799,529,683.65/45,097.80
  6. Step 6: Final answer
    x = 17,728.80

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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.