Home / 91,785.84-126,664.31-51,503.35

Finding the Fourth Proportional to 91,785.84, 126,664.31 and 51,503.35

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Solution

The fourth proportional to 91,785.84, 126,664.31 and 51,503.35 is: 71,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,785.84 : 126,664.31 = 51,503.35 : x
  2. Step 2: Convert to fraction form
    91,785.84/126,664.31 = 51,503.35/x
  3. Step 3: Cross multiply
    91,785.84x = 126,664.31 × 51,503.35
  4. Step 4: Simplify right side
    91,785.84x = 6,523,636,290.44
  5. Step 5: Solve for x
    x = 6,523,636,290.44/91,785.84
  6. Step 6: Final answer
    x = 71,074.54

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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.