Home / 81,834.54-122,487.81-42,337.26

Finding the Fourth Proportional to 81,834.54, 122,487.81 and 42,337.26

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Solution

The fourth proportional to 81,834.54, 122,487.81 and 42,337.26 is: 63,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,834.54 : 122,487.81 = 42,337.26 : x
  2. Step 2: Convert to fraction form
    81,834.54/122,487.81 = 42,337.26/x
  3. Step 3: Cross multiply
    81,834.54x = 122,487.81 × 42,337.26
  4. Step 4: Simplify right side
    81,834.54x = 5,185,798,258.80
  5. Step 5: Solve for x
    x = 5,185,798,258.80/81,834.54
  6. Step 6: Final answer
    x = 63,369.31

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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.