Home / 77,181.05-106,407.74-55,652.78

Finding the Fourth Proportional to 77,181.05, 106,407.74 and 55,652.78

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Solution

The fourth proportional to 77,181.05, 106,407.74 and 55,652.78 is: 76,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,181.05 : 106,407.74 = 55,652.78 : x
  2. Step 2: Convert to fraction form
    77,181.05/106,407.74 = 55,652.78/x
  3. Step 3: Cross multiply
    77,181.05x = 106,407.74 × 55,652.78
  4. Step 4: Simplify right side
    77,181.05x = 5,921,886,151.61
  5. Step 5: Solve for x
    x = 5,921,886,151.61/77,181.05
  6. Step 6: Final answer
    x = 76,727.21

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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.