Home / 66,249.63-91,392.30-39,373.13

Finding the Fourth Proportional to 66,249.63, 91,392.30 and 39,373.13

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Solution

The fourth proportional to 66,249.63, 91,392.30 and 39,373.13 is: 54,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249.63 : 91,392.30 = 39,373.13 : x
  2. Step 2: Convert to fraction form
    66,249.63/91,392.30 = 39,373.13/x
  3. Step 3: Cross multiply
    66,249.63x = 91,392.30 × 39,373.13
  4. Step 4: Simplify right side
    66,249.63x = 3,598,400,451.94
  5. Step 5: Solve for x
    x = 3,598,400,451.94/66,249.63
  6. Step 6: Final answer
    x = 54,315.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.