Home / 84,974.54-127,454.45-39,985.22

Finding the Fourth Proportional to 84,974.54, 127,454.45 and 39,985.22

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Solution

The fourth proportional to 84,974.54, 127,454.45 and 39,985.22 is: 59,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,974.54 : 127,454.45 = 39,985.22 : x
  2. Step 2: Convert to fraction form
    84,974.54/127,454.45 = 39,985.22/x
  3. Step 3: Cross multiply
    84,974.54x = 127,454.45 × 39,985.22
  4. Step 4: Simplify right side
    84,974.54x = 5,096,294,341.94
  5. Step 5: Solve for x
    x = 5,096,294,341.94/84,974.54
  6. Step 6: Final answer
    x = 59,974.37

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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.