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Finding the Fourth Proportional to 64,284.30, 88,619.01 and 45,104.28

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Solution

The fourth proportional to 64,284.30, 88,619.01 and 45,104.28 is: 62,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,284.30 : 88,619.01 = 45,104.28 : x
  2. Step 2: Convert to fraction form
    64,284.30/88,619.01 = 45,104.28/x
  3. Step 3: Cross multiply
    64,284.30x = 88,619.01 × 45,104.28
  4. Step 4: Simplify right side
    64,284.30x = 3,997,096,640.36
  5. Step 5: Solve for x
    x = 3,997,096,640.36/64,284.30
  6. Step 6: Final answer
    x = 62,178.43

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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.