Home / 81,922.40-122,931.35-34,534.59

Finding the Fourth Proportional to 81,922.40, 122,931.35 and 34,534.59

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Solution

The fourth proportional to 81,922.40, 122,931.35 and 34,534.59 is: 51,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,922.40 : 122,931.35 = 34,534.59 : x
  2. Step 2: Convert to fraction form
    81,922.40/122,931.35 = 34,534.59/x
  3. Step 3: Cross multiply
    81,922.40x = 122,931.35 × 34,534.59
  4. Step 4: Simplify right side
    81,922.40x = 4,245,383,460.49
  5. Step 5: Solve for x
    x = 4,245,383,460.49/81,922.40
  6. Step 6: Final answer
    x = 51,822.01

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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.