Home / 92,918.75-128,216.97-54,669.89

Finding the Fourth Proportional to 92,918.75, 128,216.97 and 54,669.89

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Solution

The fourth proportional to 92,918.75, 128,216.97 and 54,669.89 is: 75,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,918.75 : 128,216.97 = 54,669.89 : x
  2. Step 2: Convert to fraction form
    92,918.75/128,216.97 = 54,669.89/x
  3. Step 3: Cross multiply
    92,918.75x = 128,216.97 × 54,669.89
  4. Step 4: Simplify right side
    92,918.75x = 7,009,607,004.95
  5. Step 5: Solve for x
    x = 7,009,607,004.95/92,918.75
  6. Step 6: Final answer
    x = 75,438.03

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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.