Home / 85,333.44-127,904.78-31,974.08

Finding the Fourth Proportional to 85,333.44, 127,904.78 and 31,974.08

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Solution

The fourth proportional to 85,333.44, 127,904.78 and 31,974.08 is: 47,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,333.44 : 127,904.78 = 31,974.08 : x
  2. Step 2: Convert to fraction form
    85,333.44/127,904.78 = 31,974.08/x
  3. Step 3: Cross multiply
    85,333.44x = 127,904.78 × 31,974.08
  4. Step 4: Simplify right side
    85,333.44x = 4,089,638,067.80
  5. Step 5: Solve for x
    x = 4,089,638,067.80/85,333.44
  6. Step 6: Final answer
    x = 47,925.39

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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.