Home / 81,922.19-122,931.04-34,534.38

Finding the Fourth Proportional to 81,922.19, 122,931.04 and 34,534.38

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Solution

The fourth proportional to 81,922.19, 122,931.04 and 34,534.38 is: 51,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,922.19 : 122,931.04 = 34,534.38 : x
  2. Step 2: Convert to fraction form
    81,922.19/122,931.04 = 34,534.38/x
  3. Step 3: Cross multiply
    81,922.19x = 122,931.04 × 34,534.38
  4. Step 4: Simplify right side
    81,922.19x = 4,245,346,748.46
  5. Step 5: Solve for x
    x = 4,245,346,748.46/81,922.19
  6. Step 6: Final answer
    x = 51,821.70

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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.