Home / 74,105.36-111,151.08-20,802.32

Finding the Fourth Proportional to 74,105.36, 111,151.08 and 20,802.32

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Solution

The fourth proportional to 74,105.36, 111,151.08 and 20,802.32 is: 31,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,105.36 : 111,151.08 = 20,802.32 : x
  2. Step 2: Convert to fraction form
    74,105.36/111,151.08 = 20,802.32/x
  3. Step 3: Cross multiply
    74,105.36x = 111,151.08 × 20,802.32
  4. Step 4: Simplify right side
    74,105.36x = 2,312,200,334.51
  5. Step 5: Solve for x
    x = 2,312,200,334.51/74,105.36
  6. Step 6: Final answer
    x = 31,201.53

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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.