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Finding the Fourth Proportional to 65,921.44, 98,884.88 and 19,174.32

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Solution

The fourth proportional to 65,921.44, 98,884.88 and 19,174.32 is: 28,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.44 : 98,884.88 = 19,174.32 : x
  2. Step 2: Convert to fraction form
    65,921.44/98,884.88 = 19,174.32/x
  3. Step 3: Cross multiply
    65,921.44x = 98,884.88 × 19,174.32
  4. Step 4: Simplify right side
    65,921.44x = 1,896,050,332.28
  5. Step 5: Solve for x
    x = 1,896,050,332.28/65,921.44
  6. Step 6: Final answer
    x = 28,762.27

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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.