Home / 74,628.36-111,396.51-65,771.28

Finding the Fourth Proportional to 74,628.36, 111,396.51 and 65,771.28

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Solution

The fourth proportional to 74,628.36, 111,396.51 and 65,771.28 is: 98,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628.36 : 111,396.51 = 65,771.28 : x
  2. Step 2: Convert to fraction form
    74,628.36/111,396.51 = 65,771.28/x
  3. Step 3: Cross multiply
    74,628.36x = 111,396.51 × 65,771.28
  4. Step 4: Simplify right side
    74,628.36x = 7,326,691,050.23
  5. Step 5: Solve for x
    x = 7,326,691,050.23/74,628.36
  6. Step 6: Final answer
    x = 98,175.69

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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.