Home / 74,605.40-111,908.10-57,692.60

Finding the Fourth Proportional to 74,605.40, 111,908.10 and 57,692.60

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Solution

The fourth proportional to 74,605.40, 111,908.10 and 57,692.60 is: 86,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,605.40 : 111,908.10 = 57,692.60 : x
  2. Step 2: Convert to fraction form
    74,605.40/111,908.10 = 57,692.60/x
  3. Step 3: Cross multiply
    74,605.40x = 111,908.10 × 57,692.60
  4. Step 4: Simplify right side
    74,605.40x = 6,456,269,250.06
  5. Step 5: Solve for x
    x = 6,456,269,250.06/74,605.40
  6. Step 6: Final answer
    x = 86,538.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.