Home / 45,320.74-67,980.94-11,126.66

Finding the Fourth Proportional to 45,320.74, 67,980.94 and 11,126.66

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Solution

The fourth proportional to 45,320.74, 67,980.94 and 11,126.66 is: 16,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.74 : 67,980.94 = 11,126.66 : x
  2. Step 2: Convert to fraction form
    45,320.74/67,980.94 = 11,126.66/x
  3. Step 3: Cross multiply
    45,320.74x = 67,980.94 × 11,126.66
  4. Step 4: Simplify right side
    45,320.74x = 756,400,438.14
  5. Step 5: Solve for x
    x = 756,400,438.14/45,320.74
  6. Step 6: Final answer
    x = 16,689.94

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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.