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Finding the Fourth Proportional to 94,071.48, 129,808 and 55,817.32

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Solution

The fourth proportional to 94,071.48, 129,808 and 55,817.32 is: 77,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,071.48 : 129,808 = 55,817.32 : x
  2. Step 2: Convert to fraction form
    94,071.48/129,808 = 55,817.32/x
  3. Step 3: Cross multiply
    94,071.48x = 129,808 × 55,817.32
  4. Step 4: Simplify right side
    94,071.48x = 7,245,534,674.56
  5. Step 5: Solve for x
    x = 7,245,534,674.56/94,071.48
  6. Step 6: Final answer
    x = 77,021.59

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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.