Home / 65,261.61-89,982.23-55,172.25

Finding the Fourth Proportional to 65,261.61, 89,982.23 and 55,172.25

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Solution

The fourth proportional to 65,261.61, 89,982.23 and 55,172.25 is: 76,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,261.61 : 89,982.23 = 55,172.25 : x
  2. Step 2: Convert to fraction form
    65,261.61/89,982.23 = 55,172.25/x
  3. Step 3: Cross multiply
    65,261.61x = 89,982.23 × 55,172.25
  4. Step 4: Simplify right side
    65,261.61x = 4,964,521,813.26
  5. Step 5: Solve for x
    x = 4,964,521,813.26/65,261.61
  6. Step 6: Final answer
    x = 76,071.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.