Home / 65,969.28-98,986.40-30,902.88

Finding the Fourth Proportional to 65,969.28, 98,986.40 and 30,902.88

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Solution

The fourth proportional to 65,969.28, 98,986.40 and 30,902.88 is: 46,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,969.28 : 98,986.40 = 30,902.88 : x
  2. Step 2: Convert to fraction form
    65,969.28/98,986.40 = 30,902.88/x
  3. Step 3: Cross multiply
    65,969.28x = 98,986.40 × 30,902.88
  4. Step 4: Simplify right side
    65,969.28x = 3,058,964,840.83
  5. Step 5: Solve for x
    x = 3,058,964,840.83/65,969.28
  6. Step 6: Final answer
    x = 46,369.54

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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.