Home / 98,513.04-135,938.18-55,491.33

Finding the Fourth Proportional to 98,513.04, 135,938.18 and 55,491.33

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Solution

The fourth proportional to 98,513.04, 135,938.18 and 55,491.33 is: 76,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,513.04 : 135,938.18 = 55,491.33 : x
  2. Step 2: Convert to fraction form
    98,513.04/135,938.18 = 55,491.33/x
  3. Step 3: Cross multiply
    98,513.04x = 135,938.18 × 55,491.33
  4. Step 4: Simplify right side
    98,513.04x = 7,543,390,629.21
  5. Step 5: Solve for x
    x = 7,543,390,629.21/98,513.04
  6. Step 6: Final answer
    x = 76,572.51

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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.