Home / 81,427.52-122,158.80-25,266.51

Finding the Fourth Proportional to 81,427.52, 122,158.80 and 25,266.51

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Solution

The fourth proportional to 81,427.52, 122,158.80 and 25,266.51 is: 37,905.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.52 : 122,158.80 = 25,266.51 : x
  2. Step 2: Convert to fraction form
    81,427.52/122,158.80 = 25,266.51/x
  3. Step 3: Cross multiply
    81,427.52x = 122,158.80 × 25,266.51
  4. Step 4: Simplify right side
    81,427.52x = 3,086,526,541.79
  5. Step 5: Solve for x
    x = 3,086,526,541.79/81,427.52
  6. Step 6: Final answer
    x = 37,905.20

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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.