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Finding the Fourth Proportional to 56,571.20, 84,881.10 and 28,869.20

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Solution

The fourth proportional to 56,571.20, 84,881.10 and 28,869.20 is: 43,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.20 : 84,881.10 = 28,869.20 : x
  2. Step 2: Convert to fraction form
    56,571.20/84,881.10 = 28,869.20/x
  3. Step 3: Cross multiply
    56,571.20x = 84,881.10 × 28,869.20
  4. Step 4: Simplify right side
    56,571.20x = 2,450,449,452.12
  5. Step 5: Solve for x
    x = 2,450,449,452.12/56,571.20
  6. Step 6: Final answer
    x = 43,316.20

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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.