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Finding the Fourth Proportional to 56,509.20, 84,850.20 and 39,056.40

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Solution

The fourth proportional to 56,509.20, 84,850.20 and 39,056.40 is: 58,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,509.20 : 84,850.20 = 39,056.40 : x
  2. Step 2: Convert to fraction form
    56,509.20/84,850.20 = 39,056.40/x
  3. Step 3: Cross multiply
    56,509.20x = 84,850.20 × 39,056.40
  4. Step 4: Simplify right side
    56,509.20x = 3,313,943,351.28
  5. Step 5: Solve for x
    x = 3,313,943,351.28/56,509.20
  6. Step 6: Final answer
    x = 58,644.32

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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.