Home / 81,341.22-122,032.87-47,635.71

Finding the Fourth Proportional to 81,341.22, 122,032.87 and 47,635.71

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Solution

The fourth proportional to 81,341.22, 122,032.87 and 47,635.71 is: 71,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,341.22 : 122,032.87 = 47,635.71 : x
  2. Step 2: Convert to fraction form
    81,341.22/122,032.87 = 47,635.71/x
  3. Step 3: Cross multiply
    81,341.22x = 122,032.87 × 47,635.71
  4. Step 4: Simplify right side
    81,341.22x = 5,813,122,405.79
  5. Step 5: Solve for x
    x = 5,813,122,405.79/81,341.22
  6. Step 6: Final answer
    x = 71,465.89

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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.