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Finding the Fourth Proportional to 55,477.96, 77,076.07 and 54,813.66

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Solution

The fourth proportional to 55,477.96, 77,076.07 and 54,813.66 is: 76,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,477.96 : 77,076.07 = 54,813.66 : x
  2. Step 2: Convert to fraction form
    55,477.96/77,076.07 = 54,813.66/x
  3. Step 3: Cross multiply
    55,477.96x = 77,076.07 × 54,813.66
  4. Step 4: Simplify right side
    55,477.96x = 4,224,821,579.68
  5. Step 5: Solve for x
    x = 4,224,821,579.68/55,477.96
  6. Step 6: Final answer
    x = 76,153.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.