Home / 74,206.38-111,309.60-21,619.98

Finding the Fourth Proportional to 74,206.38, 111,309.60 and 21,619.98

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Solution

The fourth proportional to 74,206.38, 111,309.60 and 21,619.98 is: 32,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,206.38 : 111,309.60 = 21,619.98 : x
  2. Step 2: Convert to fraction form
    74,206.38/111,309.60 = 21,619.98/x
  3. Step 3: Cross multiply
    74,206.38x = 111,309.60 × 21,619.98
  4. Step 4: Simplify right side
    74,206.38x = 2,406,511,325.81
  5. Step 5: Solve for x
    x = 2,406,511,325.81/74,206.38
  6. Step 6: Final answer
    x = 32,429.98

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1.5x scale

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.