Home / 74,490.36-111,735.54-21,900.30

Finding the Fourth Proportional to 74,490.36, 111,735.54 and 21,900.30

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Solution

The fourth proportional to 74,490.36, 111,735.54 and 21,900.30 is: 32,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,490.36 : 111,735.54 = 21,900.30 : x
  2. Step 2: Convert to fraction form
    74,490.36/111,735.54 = 21,900.30/x
  3. Step 3: Cross multiply
    74,490.36x = 111,735.54 × 21,900.30
  4. Step 4: Simplify right side
    74,490.36x = 2,447,041,846.66
  5. Step 5: Solve for x
    x = 2,447,041,846.66/74,490.36
  6. Step 6: Final answer
    x = 32,850.45

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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.