Home / 93,268.22-128,556.54-66,009.06

Finding the Fourth Proportional to 93,268.22, 128,556.54 and 66,009.06

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Solution

The fourth proportional to 93,268.22, 128,556.54 and 66,009.06 is: 90,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,268.22 : 128,556.54 = 66,009.06 : x
  2. Step 2: Convert to fraction form
    93,268.22/128,556.54 = 66,009.06/x
  3. Step 3: Cross multiply
    93,268.22x = 128,556.54 × 66,009.06
  4. Step 4: Simplify right side
    93,268.22x = 8,485,896,362.25
  5. Step 5: Solve for x
    x = 8,485,896,362.25/93,268.22
  6. Step 6: Final answer
    x = 90,983.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.