Home / 74,104.36-111,149.58-20,801.32

Finding the Fourth Proportional to 74,104.36, 111,149.58 and 20,801.32

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Solution

The fourth proportional to 74,104.36, 111,149.58 and 20,801.32 is: 31,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,104.36 : 111,149.58 = 20,801.32 : x
  2. Step 2: Convert to fraction form
    74,104.36/111,149.58 = 20,801.32/x
  3. Step 3: Cross multiply
    74,104.36x = 111,149.58 × 20,801.32
  4. Step 4: Simplify right side
    74,104.36x = 2,312,057,981.45
  5. Step 5: Solve for x
    x = 2,312,057,981.45/74,104.36
  6. Step 6: Final answer
    x = 31,200.03

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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.