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Finding the Fourth Proportional to 54,010.60, 81,015.90 and 51,677.80

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Solution

The fourth proportional to 54,010.60, 81,015.90 and 51,677.80 is: 77,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,010.60 : 81,015.90 = 51,677.80 : x
  2. Step 2: Convert to fraction form
    54,010.60/81,015.90 = 51,677.80/x
  3. Step 3: Cross multiply
    54,010.60x = 81,015.90 × 51,677.80
  4. Step 4: Simplify right side
    54,010.60x = 4,186,723,477.02
  5. Step 5: Solve for x
    x = 4,186,723,477.02/54,010.60
  6. Step 6: Final answer
    x = 77,516.70

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1.5x scale

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.