Home / 74,628.12-111,396.16-65,771.04

Finding the Fourth Proportional to 74,628.12, 111,396.16 and 65,771.04

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Solution

The fourth proportional to 74,628.12, 111,396.16 and 65,771.04 is: 98,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628.12 : 111,396.16 = 65,771.04 : x
  2. Step 2: Convert to fraction form
    74,628.12/111,396.16 = 65,771.04/x
  3. Step 3: Cross multiply
    74,628.12x = 111,396.16 × 65,771.04
  4. Step 4: Simplify right side
    74,628.12x = 7,326,641,295.21
  5. Step 5: Solve for x
    x = 7,326,641,295.21/74,628.12
  6. Step 6: Final answer
    x = 98,175.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.