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Finding the Fourth Proportional to 65,004.54, 89,619.53 and 51,620.10

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Solution

The fourth proportional to 65,004.54, 89,619.53 and 51,620.10 is: 71,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,004.54 : 89,619.53 = 51,620.10 : x
  2. Step 2: Convert to fraction form
    65,004.54/89,619.53 = 51,620.10/x
  3. Step 3: Cross multiply
    65,004.54x = 89,619.53 × 51,620.10
  4. Step 4: Simplify right side
    65,004.54x = 4,626,168,842.45
  5. Step 5: Solve for x
    x = 4,626,168,842.45/65,004.54
  6. Step 6: Final answer
    x = 71,166.86

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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.