Home / 81,214.98-121,840.32-25,056.06

Finding the Fourth Proportional to 81,214.98, 121,840.32 and 25,056.06

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Solution

The fourth proportional to 81,214.98, 121,840.32 and 25,056.06 is: 37,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,214.98 : 121,840.32 = 25,056.06 : x
  2. Step 2: Convert to fraction form
    81,214.98/121,840.32 = 25,056.06/x
  3. Step 3: Cross multiply
    81,214.98x = 121,840.32 × 25,056.06
  4. Step 4: Simplify right side
    81,214.98x = 3,052,838,368.34
  5. Step 5: Solve for x
    x = 3,052,838,368.34/81,214.98
  6. Step 6: Final answer
    x = 37,589.60

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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.