Home / 80,607.03-111,254.15-55,183.70

Finding the Fourth Proportional to 80,607.03, 111,254.15 and 55,183.70

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Solution

The fourth proportional to 80,607.03, 111,254.15 and 55,183.70 is: 76,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.03 : 111,254.15 = 55,183.70 : x
  2. Step 2: Convert to fraction form
    80,607.03/111,254.15 = 55,183.70/x
  3. Step 3: Cross multiply
    80,607.03x = 111,254.15 × 55,183.70
  4. Step 4: Simplify right side
    80,607.03x = 6,139,415,637.36
  5. Step 5: Solve for x
    x = 6,139,415,637.36/80,607.03
  6. Step 6: Final answer
    x = 76,164.77

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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.