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Finding the Fourth Proportional to 92,849.76, 128,131.74 and 50,407.38

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Solution

The fourth proportional to 92,849.76, 128,131.74 and 50,407.38 is: 69,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,849.76 : 128,131.74 = 50,407.38 : x
  2. Step 2: Convert to fraction form
    92,849.76/128,131.74 = 50,407.38/x
  3. Step 3: Cross multiply
    92,849.76x = 128,131.74 × 50,407.38
  4. Step 4: Simplify right side
    92,849.76x = 6,458,785,308.24
  5. Step 5: Solve for x
    x = 6,458,785,308.24/92,849.76
  6. Step 6: Final answer
    x = 69,561.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.