Home / 81,338.04-122,028.10-47,632.54

Finding the Fourth Proportional to 81,338.04, 122,028.10 and 47,632.54

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Solution

The fourth proportional to 81,338.04, 122,028.10 and 47,632.54 is: 71,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.04 : 122,028.10 = 47,632.54 : x
  2. Step 2: Convert to fraction form
    81,338.04/122,028.10 = 47,632.54/x
  3. Step 3: Cross multiply
    81,338.04x = 122,028.10 × 47,632.54
  4. Step 4: Simplify right side
    81,338.04x = 5,812,508,354.37
  5. Step 5: Solve for x
    x = 5,812,508,354.37/81,338.04
  6. Step 6: Final answer
    x = 71,461.13

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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.