Home / 97,913.09-135,120.52-55,479.89

Finding the Fourth Proportional to 97,913.09, 135,120.52 and 55,479.89

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Solution

The fourth proportional to 97,913.09, 135,120.52 and 55,479.89 is: 76,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,913.09 : 135,120.52 = 55,479.89 : x
  2. Step 2: Convert to fraction form
    97,913.09/135,120.52 = 55,479.89/x
  3. Step 3: Cross multiply
    97,913.09x = 135,120.52 × 55,479.89
  4. Step 4: Simplify right side
    97,913.09x = 7,496,471,993.49
  5. Step 5: Solve for x
    x = 7,496,471,993.49/97,913.09
  6. Step 6: Final answer
    x = 76,562.51

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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.