Home / 85,336.53-128,019.66-29,182.26

Finding the Fourth Proportional to 85,336.53, 128,019.66 and 29,182.26

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Solution

The fourth proportional to 85,336.53, 128,019.66 and 29,182.26 is: 43,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,336.53 : 128,019.66 = 29,182.26 : x
  2. Step 2: Convert to fraction form
    85,336.53/128,019.66 = 29,182.26/x
  3. Step 3: Cross multiply
    85,336.53x = 128,019.66 × 29,182.26
  4. Step 4: Simplify right side
    85,336.53x = 3,735,903,003.23
  5. Step 5: Solve for x
    x = 3,735,903,003.23/85,336.53
  6. Step 6: Final answer
    x = 43,778.47

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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.