Home / 65,485.24-98,145.62-28,001.28

Finding the Fourth Proportional to 65,485.24, 98,145.62 and 28,001.28

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Solution

The fourth proportional to 65,485.24, 98,145.62 and 28,001.28 is: 41,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.24 : 98,145.62 = 28,001.28 : x
  2. Step 2: Convert to fraction form
    65,485.24/98,145.62 = 28,001.28/x
  3. Step 3: Cross multiply
    65,485.24x = 98,145.62 × 28,001.28
  4. Step 4: Simplify right side
    65,485.24x = 2,748,202,986.39
  5. Step 5: Solve for x
    x = 2,748,202,986.39/65,485.24
  6. Step 6: Final answer
    x = 41,966.75

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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.