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Finding the Fourth Proportional to 98,384.76, 135,770.99 and 55,945.89

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Solution

The fourth proportional to 98,384.76, 135,770.99 and 55,945.89 is: 77,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384.76 : 135,770.99 = 55,945.89 : x
  2. Step 2: Convert to fraction form
    98,384.76/135,770.99 = 55,945.89/x
  3. Step 3: Cross multiply
    98,384.76x = 135,770.99 × 55,945.89
  4. Step 4: Simplify right side
    98,384.76x = 7,595,828,592.00
  5. Step 5: Solve for x
    x = 7,595,828,592.00/98,384.76
  6. Step 6: Final answer
    x = 77,205.34

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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.