Home / 91,766.75-126,692.40-57,804.35

Finding the Fourth Proportional to 91,766.75, 126,692.40 and 57,804.35

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Solution

The fourth proportional to 91,766.75, 126,692.40 and 57,804.35 is: 79,804.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,766.75 : 126,692.40 = 57,804.35 : x
  2. Step 2: Convert to fraction form
    91,766.75/126,692.40 = 57,804.35/x
  3. Step 3: Cross multiply
    91,766.75x = 126,692.40 × 57,804.35
  4. Step 4: Simplify right side
    91,766.75x = 7,323,370,909.46
  5. Step 5: Solve for x
    x = 7,323,370,909.46/91,766.75
  6. Step 6: Final answer
    x = 79,804.19

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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.