Home / 81,467.25-122,266.49-42,035.64

Finding the Fourth Proportional to 81,467.25, 122,266.49 and 42,035.64

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Solution

The fourth proportional to 81,467.25, 122,266.49 and 42,035.64 is: 63,087.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,467.25 : 122,266.49 = 42,035.64 : x
  2. Step 2: Convert to fraction form
    81,467.25/122,266.49 = 42,035.64/x
  3. Step 3: Cross multiply
    81,467.25x = 122,266.49 × 42,035.64
  4. Step 4: Simplify right side
    81,467.25x = 5,139,549,947.53
  5. Step 5: Solve for x
    x = 5,139,549,947.53/81,467.25
  6. Step 6: Final answer
    x = 63,087.31

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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.