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Finding the Fourth Proportional to 64,419.04, 88,899 and 35,739.28

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Solution

The fourth proportional to 64,419.04, 88,899 and 35,739.28 is: 49,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,419.04 : 88,899 = 35,739.28 : x
  2. Step 2: Convert to fraction form
    64,419.04/88,899 = 35,739.28/x
  3. Step 3: Cross multiply
    64,419.04x = 88,899 × 35,739.28
  4. Step 4: Simplify right side
    64,419.04x = 3,177,186,252.72
  5. Step 5: Solve for x
    x = 3,177,186,252.72/64,419.04
  6. Step 6: Final answer
    x = 49,320.61

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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.