Home / 91,829.84-126,715.43-51,548.03

Finding the Fourth Proportional to 91,829.84, 126,715.43 and 51,548.03

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Solution

The fourth proportional to 91,829.84, 126,715.43 and 51,548.03 is: 71,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,829.84 : 126,715.43 = 51,548.03 : x
  2. Step 2: Convert to fraction form
    91,829.84/126,715.43 = 51,548.03/x
  3. Step 3: Cross multiply
    91,829.84x = 126,715.43 × 51,548.03
  4. Step 4: Simplify right side
    91,829.84x = 6,531,930,787.10
  5. Step 5: Solve for x
    x = 6,531,930,787.10/91,829.84
  6. Step 6: Final answer
    x = 71,130.81

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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.