Home / 80,383.02-120,549.90-55,582.44

Finding the Fourth Proportional to 80,383.02, 120,549.90 and 55,582.44

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Solution

The fourth proportional to 80,383.02, 120,549.90 and 55,582.44 is: 83,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,383.02 : 120,549.90 = 55,582.44 : x
  2. Step 2: Convert to fraction form
    80,383.02/120,549.90 = 55,582.44/x
  3. Step 3: Cross multiply
    80,383.02x = 120,549.90 × 55,582.44
  4. Step 4: Simplify right side
    80,383.02x = 6,700,457,583.76
  5. Step 5: Solve for x
    x = 6,700,457,583.76/80,383.02
  6. Step 6: Final answer
    x = 83,356.63

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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.