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Finding the Fourth Proportional to 69,802.86, 96,312.73 and 39,581.37

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Solution

The fourth proportional to 69,802.86, 96,312.73 and 39,581.37 is: 54,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,802.86 : 96,312.73 = 39,581.37 : x
  2. Step 2: Convert to fraction form
    69,802.86/96,312.73 = 39,581.37/x
  3. Step 3: Cross multiply
    69,802.86x = 96,312.73 × 39,581.37
  4. Step 4: Simplify right side
    69,802.86x = 3,812,189,801.84
  5. Step 5: Solve for x
    x = 3,812,189,801.84/69,802.86
  6. Step 6: Final answer
    x = 54,613.66

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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.