Home / 85,284.54-127,881.56-26,104.32

Finding the Fourth Proportional to 85,284.54, 127,881.56 and 26,104.32

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Solution

The fourth proportional to 85,284.54, 127,881.56 and 26,104.32 is: 39,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.54 : 127,881.56 = 26,104.32 : x
  2. Step 2: Convert to fraction form
    85,284.54/127,881.56 = 26,104.32/x
  3. Step 3: Cross multiply
    85,284.54x = 127,881.56 × 26,104.32
  4. Step 4: Simplify right side
    85,284.54x = 3,338,261,033.82
  5. Step 5: Solve for x
    x = 3,338,261,033.82/85,284.54
  6. Step 6: Final answer
    x = 39,142.63

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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.