Home / 85,364.70-128,046.02-22,179.23

Finding the Fourth Proportional to 85,364.70, 128,046.02 and 22,179.23

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Solution

The fourth proportional to 85,364.70, 128,046.02 and 22,179.23 is: 33,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,364.70 : 128,046.02 = 22,179.23 : x
  2. Step 2: Convert to fraction form
    85,364.70/128,046.02 = 22,179.23/x
  3. Step 3: Cross multiply
    85,364.70x = 128,046.02 × 22,179.23
  4. Step 4: Simplify right side
    85,364.70x = 2,839,962,128.16
  5. Step 5: Solve for x
    x = 2,839,962,128.16/85,364.70
  6. Step 6: Final answer
    x = 33,268.58

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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.