Home / 90,019.15-134,991.36-33,830.26

Finding the Fourth Proportional to 90,019.15, 134,991.36 and 33,830.26

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Solution

The fourth proportional to 90,019.15, 134,991.36 and 33,830.26 is: 50,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,019.15 : 134,991.36 = 33,830.26 : x
  2. Step 2: Convert to fraction form
    90,019.15/134,991.36 = 33,830.26/x
  3. Step 3: Cross multiply
    90,019.15x = 134,991.36 × 33,830.26
  4. Step 4: Simplify right side
    90,019.15x = 4,566,792,469.08
  5. Step 5: Solve for x
    x = 4,566,792,469.08/90,019.15
  6. Step 6: Final answer
    x = 50,731.35

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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.