Home / 71,069.04-106,640.61-28,980.21

Finding the Fourth Proportional to 71,069.04, 106,640.61 and 28,980.21

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Solution

The fourth proportional to 71,069.04, 106,640.61 and 28,980.21 is: 43,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.04 : 106,640.61 = 28,980.21 : x
  2. Step 2: Convert to fraction form
    71,069.04/106,640.61 = 28,980.21/x
  3. Step 3: Cross multiply
    71,069.04x = 106,640.61 × 28,980.21
  4. Step 4: Simplify right side
    71,069.04x = 3,090,467,272.33
  5. Step 5: Solve for x
    x = 3,090,467,272.33/71,069.04
  6. Step 6: Final answer
    x = 43,485.42

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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.