Home / 98,384.34-135,769.76-55,942.88

Finding the Fourth Proportional to 98,384.34, 135,769.76 and 55,942.88

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Solution

The fourth proportional to 98,384.34, 135,769.76 and 55,942.88 is: 77,200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384.34 : 135,769.76 = 55,942.88 : x
  2. Step 2: Convert to fraction form
    98,384.34/135,769.76 = 55,942.88/x
  3. Step 3: Cross multiply
    98,384.34x = 135,769.76 × 55,942.88
  4. Step 4: Simplify right side
    98,384.34x = 7,595,350,432.75
  5. Step 5: Solve for x
    x = 7,595,350,432.75/98,384.34
  6. Step 6: Final answer
    x = 77,200.81

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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.