Home / 54,125.20-81,187.80-47,564.20

Finding the Fourth Proportional to 54,125.20, 81,187.80 and 47,564.20

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Solution

The fourth proportional to 54,125.20, 81,187.80 and 47,564.20 is: 71,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,125.20 : 81,187.80 = 47,564.20 : x
  2. Step 2: Convert to fraction form
    54,125.20/81,187.80 = 47,564.20/x
  3. Step 3: Cross multiply
    54,125.20x = 81,187.80 × 47,564.20
  4. Step 4: Simplify right side
    54,125.20x = 3,861,632,756.76
  5. Step 5: Solve for x
    x = 3,861,632,756.76/54,125.20
  6. Step 6: Final answer
    x = 71,346.30

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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.