Home / 98,268.90-135,611.54-55,829.76

Finding the Fourth Proportional to 98,268.90, 135,611.54 and 55,829.76

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Solution

The fourth proportional to 98,268.90, 135,611.54 and 55,829.76 is: 77,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,268.90 : 135,611.54 = 55,829.76 : x
  2. Step 2: Convert to fraction form
    98,268.90/135,611.54 = 55,829.76/x
  3. Step 3: Cross multiply
    98,268.90x = 135,611.54 × 55,829.76
  4. Step 4: Simplify right side
    98,268.90x = 7,571,159,731.43
  5. Step 5: Solve for x
    x = 7,571,159,731.43/98,268.90
  6. Step 6: Final answer
    x = 77,045.33

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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.