Home / 57,961.61-86,974.71-31,307.06

Finding the Fourth Proportional to 57,961.61, 86,974.71 and 31,307.06

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Solution

The fourth proportional to 57,961.61, 86,974.71 and 31,307.06 is: 46,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,961.61 : 86,974.71 = 31,307.06 : x
  2. Step 2: Convert to fraction form
    57,961.61/86,974.71 = 31,307.06/x
  3. Step 3: Cross multiply
    57,961.61x = 86,974.71 × 31,307.06
  4. Step 4: Simplify right side
    57,961.61x = 2,722,922,029.58
  5. Step 5: Solve for x
    x = 2,722,922,029.58/57,961.61
  6. Step 6: Final answer
    x = 46,978.03

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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.