Home / 52,441.20-78,661.80-15,505.20

Finding the Fourth Proportional to 52,441.20, 78,661.80 and 15,505.20

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Solution

The fourth proportional to 52,441.20, 78,661.80 and 15,505.20 is: 23,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,441.20 : 78,661.80 = 15,505.20 : x
  2. Step 2: Convert to fraction form
    52,441.20/78,661.80 = 15,505.20/x
  3. Step 3: Cross multiply
    52,441.20x = 78,661.80 × 15,505.20
  4. Step 4: Simplify right side
    52,441.20x = 1,219,666,941.36
  5. Step 5: Solve for x
    x = 1,219,666,941.36/52,441.20
  6. Step 6: Final answer
    x = 23,257.80

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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.