Home / 81,488.47-122,201.98-34,106.84

Finding the Fourth Proportional to 81,488.47, 122,201.98 and 34,106.84

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Solution

The fourth proportional to 81,488.47, 122,201.98 and 34,106.84 is: 51,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,488.47 : 122,201.98 = 34,106.84 : x
  2. Step 2: Convert to fraction form
    81,488.47/122,201.98 = 34,106.84/x
  3. Step 3: Cross multiply
    81,488.47x = 122,201.98 × 34,106.84
  4. Step 4: Simplify right side
    81,488.47x = 4,167,924,020.76
  5. Step 5: Solve for x
    x = 4,167,924,020.76/81,488.47
  6. Step 6: Final answer
    x = 51,147.41

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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.