Home / 66,169.40-99,232.77-21,785.59

Finding the Fourth Proportional to 66,169.40, 99,232.77 and 21,785.59

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Solution

The fourth proportional to 66,169.40, 99,232.77 and 21,785.59 is: 32,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,169.40 : 99,232.77 = 21,785.59 : x
  2. Step 2: Convert to fraction form
    66,169.40/99,232.77 = 21,785.59/x
  3. Step 3: Cross multiply
    66,169.40x = 99,232.77 × 21,785.59
  4. Step 4: Simplify right side
    66,169.40x = 2,161,843,945.62
  5. Step 5: Solve for x
    x = 2,161,843,945.62/66,169.40
  6. Step 6: Final answer
    x = 32,671.35

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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.