Home / 66,728.43-92,033.22-42,857.32

Finding the Fourth Proportional to 66,728.43, 92,033.22 and 42,857.32

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Solution

The fourth proportional to 66,728.43, 92,033.22 and 42,857.32 is: 59,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,728.43 : 92,033.22 = 42,857.32 : x
  2. Step 2: Convert to fraction form
    66,728.43/92,033.22 = 42,857.32/x
  3. Step 3: Cross multiply
    66,728.43x = 92,033.22 × 42,857.32
  4. Step 4: Simplify right side
    66,728.43x = 3,944,297,160.17
  5. Step 5: Solve for x
    x = 3,944,297,160.17/66,728.43
  6. Step 6: Final answer
    x = 59,109.70

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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.