Home / 45,108.85-67,661.73-21,427.74

Finding the Fourth Proportional to 45,108.85, 67,661.73 and 21,427.74

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Solution

The fourth proportional to 45,108.85, 67,661.73 and 21,427.74 is: 32,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.85 : 67,661.73 = 21,427.74 : x
  2. Step 2: Convert to fraction form
    45,108.85/67,661.73 = 21,427.74/x
  3. Step 3: Cross multiply
    45,108.85x = 67,661.73 × 21,427.74
  4. Step 4: Simplify right side
    45,108.85x = 1,449,837,958.39
  5. Step 5: Solve for x
    x = 1,449,837,958.39/45,108.85
  6. Step 6: Final answer
    x = 32,140.88

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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.