Home / 45,193.41-67,790.52-11,918.21

Finding the Fourth Proportional to 45,193.41, 67,790.52 and 11,918.21

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Solution

The fourth proportional to 45,193.41, 67,790.52 and 11,918.21 is: 17,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,193.41 : 67,790.52 = 11,918.21 : x
  2. Step 2: Convert to fraction form
    45,193.41/67,790.52 = 11,918.21/x
  3. Step 3: Cross multiply
    45,193.41x = 67,790.52 × 11,918.21
  4. Step 4: Simplify right side
    45,193.41x = 807,941,314.42
  5. Step 5: Solve for x
    x = 807,941,314.42/45,193.41
  6. Step 6: Final answer
    x = 17,877.41

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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.