Home / 77,032.02-106,083.06-66,190.26

Finding the Fourth Proportional to 77,032.02, 106,083.06 and 66,190.26

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Solution

The fourth proportional to 77,032.02, 106,083.06 and 66,190.26 is: 91,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,032.02 : 106,083.06 = 66,190.26 : x
  2. Step 2: Convert to fraction form
    77,032.02/106,083.06 = 66,190.26/x
  3. Step 3: Cross multiply
    77,032.02x = 106,083.06 × 66,190.26
  4. Step 4: Simplify right side
    77,032.02x = 7,021,665,323.00
  5. Step 5: Solve for x
    x = 7,021,665,323.00/77,032.02
  6. Step 6: Final answer
    x = 91,152.55

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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.