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Finding the Fourth Proportional to 64,130, 96,190.42 and 19,752.12

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Solution

The fourth proportional to 64,130, 96,190.42 and 19,752.12 is: 29,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,130 : 96,190.42 = 19,752.12 : x
  2. Step 2: Convert to fraction form
    64,130/96,190.42 = 19,752.12/x
  3. Step 3: Cross multiply
    64,130x = 96,190.42 × 19,752.12
  4. Step 4: Simplify right side
    64,130x = 1,899,964,718.69
  5. Step 5: Solve for x
    x = 1,899,964,718.69/64,130
  6. Step 6: Final answer
    x = 29,626.77

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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.