Home / 52,485.20-78,535.80-38,661.20

Finding the Fourth Proportional to 52,485.20, 78,535.80 and 38,661.20

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Solution

The fourth proportional to 52,485.20, 78,535.80 and 38,661.20 is: 57,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,485.20 : 78,535.80 = 38,661.20 : x
  2. Step 2: Convert to fraction form
    52,485.20/78,535.80 = 38,661.20/x
  3. Step 3: Cross multiply
    52,485.20x = 78,535.80 × 38,661.20
  4. Step 4: Simplify right side
    52,485.20x = 3,036,288,270.96
  5. Step 5: Solve for x
    x = 3,036,288,270.96/52,485.20
  6. Step 6: Final answer
    x = 57,850.37

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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.