Home / 55,132.02-76,079.92-31,258.22

Finding the Fourth Proportional to 55,132.02, 76,079.92 and 31,258.22

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Solution

The fourth proportional to 55,132.02, 76,079.92 and 31,258.22 is: 43,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.02 : 76,079.92 = 31,258.22 : x
  2. Step 2: Convert to fraction form
    55,132.02/76,079.92 = 31,258.22/x
  3. Step 3: Cross multiply
    55,132.02x = 76,079.92 × 31,258.22
  4. Step 4: Simplify right side
    55,132.02x = 2,378,122,876.94
  5. Step 5: Solve for x
    x = 2,378,122,876.94/55,132.02
  6. Step 6: Final answer
    x = 43,135.06

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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.