Home / 81,931.82-122,945.48-34,543.98

Finding the Fourth Proportional to 81,931.82, 122,945.48 and 34,543.98

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Solution

The fourth proportional to 81,931.82, 122,945.48 and 34,543.98 is: 51,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,931.82 : 122,945.48 = 34,543.98 : x
  2. Step 2: Convert to fraction form
    81,931.82/122,945.48 = 34,543.98/x
  3. Step 3: Cross multiply
    81,931.82x = 122,945.48 × 34,543.98
  4. Step 4: Simplify right side
    81,931.82x = 4,247,026,202.21
  5. Step 5: Solve for x
    x = 4,247,026,202.21/81,931.82
  6. Step 6: Final answer
    x = 51,836.10

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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.