Home / 81,586.53-122,346.59-25,407.77

Finding the Fourth Proportional to 81,586.53, 122,346.59 and 25,407.77

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Solution

The fourth proportional to 81,586.53, 122,346.59 and 25,407.77 is: 38,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.53 : 122,346.59 = 25,407.77 : x
  2. Step 2: Convert to fraction form
    81,586.53/122,346.59 = 25,407.77/x
  3. Step 3: Cross multiply
    81,586.53x = 122,346.59 × 25,407.77
  4. Step 4: Simplify right side
    81,586.53x = 3,108,553,280.23
  5. Step 5: Solve for x
    x = 3,108,553,280.23/81,586.53
  6. Step 6: Final answer
    x = 38,101.31

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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.