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Finding the Fourth Proportional to 92,795.23, 128,057.76 and 50,353.76

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Solution

The fourth proportional to 92,795.23, 128,057.76 and 50,353.76 is: 69,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,795.23 : 128,057.76 = 50,353.76 : x
  2. Step 2: Convert to fraction form
    92,795.23/128,057.76 = 50,353.76/x
  3. Step 3: Cross multiply
    92,795.23x = 128,057.76 × 50,353.76
  4. Step 4: Simplify right side
    92,795.23x = 6,448,189,461.41
  5. Step 5: Solve for x
    x = 6,448,189,461.41/92,795.23
  6. Step 6: Final answer
    x = 69,488.38

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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.