Home / 55,157.02-76,194.21-49,186.78

Finding the Fourth Proportional to 55,157.02, 76,194.21 and 49,186.78

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Solution

The fourth proportional to 55,157.02, 76,194.21 and 49,186.78 is: 67,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.02 : 76,194.21 = 49,186.78 : x
  2. Step 2: Convert to fraction form
    55,157.02/76,194.21 = 49,186.78/x
  3. Step 3: Cross multiply
    55,157.02x = 76,194.21 × 49,186.78
  4. Step 4: Simplify right side
    55,157.02x = 3,747,747,844.54
  5. Step 5: Solve for x
    x = 3,747,747,844.54/55,157.02
  6. Step 6: Final answer
    x = 67,946.89

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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.