Home / 66,878.40-92,293.23-40,022.04

Finding the Fourth Proportional to 66,878.40, 92,293.23 and 40,022.04

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Solution

The fourth proportional to 66,878.40, 92,293.23 and 40,022.04 is: 55,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.40 : 92,293.23 = 40,022.04 : x
  2. Step 2: Convert to fraction form
    66,878.40/92,293.23 = 40,022.04/x
  3. Step 3: Cross multiply
    66,878.40x = 92,293.23 × 40,022.04
  4. Step 4: Simplify right side
    66,878.40x = 3,693,763,342.79
  5. Step 5: Solve for x
    x = 3,693,763,342.79/66,878.40
  6. Step 6: Final answer
    x = 55,231.04

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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.