Home / 66,698.08-100,039.73-16,778.17

Finding the Fourth Proportional to 66,698.08, 100,039.73 and 16,778.17

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Solution

The fourth proportional to 66,698.08, 100,039.73 and 16,778.17 is: 25,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.08 : 100,039.73 = 16,778.17 : x
  2. Step 2: Convert to fraction form
    66,698.08/100,039.73 = 16,778.17/x
  3. Step 3: Cross multiply
    66,698.08x = 100,039.73 × 16,778.17
  4. Step 4: Simplify right side
    66,698.08x = 1,678,483,596.69
  5. Step 5: Solve for x
    x = 1,678,483,596.69/66,698.08
  6. Step 6: Final answer
    x = 25,165.40

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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.