Home / 80,946.02-121,418.24-45,407.27

Finding the Fourth Proportional to 80,946.02, 121,418.24 and 45,407.27

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Solution

The fourth proportional to 80,946.02, 121,418.24 and 45,407.27 is: 68,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,946.02 : 121,418.24 = 45,407.27 : x
  2. Step 2: Convert to fraction form
    80,946.02/121,418.24 = 45,407.27/x
  3. Step 3: Cross multiply
    80,946.02x = 121,418.24 × 45,407.27
  4. Step 4: Simplify right side
    80,946.02x = 5,513,269,972.48
  5. Step 5: Solve for x
    x = 5,513,269,972.48/80,946.02
  6. Step 6: Final answer
    x = 68,110.46

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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.