Home / 98,383.47-135,768.55-55,942

Finding the Fourth Proportional to 98,383.47, 135,768.55 and 55,942

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Solution

The fourth proportional to 98,383.47, 135,768.55 and 55,942 is: 77,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,383.47 : 135,768.55 = 55,942 : x
  2. Step 2: Convert to fraction form
    98,383.47/135,768.55 = 55,942/x
  3. Step 3: Cross multiply
    98,383.47x = 135,768.55 × 55,942
  4. Step 4: Simplify right side
    98,383.47x = 7,595,164,224.10
  5. Step 5: Solve for x
    x = 7,595,164,224.10/98,383.47
  6. Step 6: Final answer
    x = 77,199.60

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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.