Home / 81,017.70-111,774.60-50,804.28

Finding the Fourth Proportional to 81,017.70, 111,774.60 and 50,804.28

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Solution

The fourth proportional to 81,017.70, 111,774.60 and 50,804.28 is: 70,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.70 : 111,774.60 = 50,804.28 : x
  2. Step 2: Convert to fraction form
    81,017.70/111,774.60 = 50,804.28/x
  3. Step 3: Cross multiply
    81,017.70x = 111,774.60 × 50,804.28
  4. Step 4: Simplify right side
    81,017.70x = 5,678,628,075.29
  5. Step 5: Solve for x
    x = 5,678,628,075.29/81,017.70
  6. Step 6: Final answer
    x = 70,091.20

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1.5x scale

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.