Home / 74,012.34-111,036.74-21,427.14

Finding the Fourth Proportional to 74,012.34, 111,036.74 and 21,427.14

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Solution

The fourth proportional to 74,012.34, 111,036.74 and 21,427.14 is: 32,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,012.34 : 111,036.74 = 21,427.14 : x
  2. Step 2: Convert to fraction form
    74,012.34/111,036.74 = 21,427.14/x
  3. Step 3: Cross multiply
    74,012.34x = 111,036.74 × 21,427.14
  4. Step 4: Simplify right side
    74,012.34x = 2,379,199,665.99
  5. Step 5: Solve for x
    x = 2,379,199,665.99/74,012.34
  6. Step 6: Final answer
    x = 32,145.99

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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.