Home / 84,729.67-127,055.05-31,419.49

Finding the Fourth Proportional to 84,729.67, 127,055.05 and 31,419.49

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Solution

The fourth proportional to 84,729.67, 127,055.05 and 31,419.49 is: 47,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,729.67 : 127,055.05 = 31,419.49 : x
  2. Step 2: Convert to fraction form
    84,729.67/127,055.05 = 31,419.49/x
  3. Step 3: Cross multiply
    84,729.67x = 127,055.05 × 31,419.49
  4. Step 4: Simplify right side
    84,729.67x = 3,992,004,872.92
  5. Step 5: Solve for x
    x = 3,992,004,872.92/84,729.67
  6. Step 6: Final answer
    x = 47,114.60

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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.