Home / 75,530.10-113,331.60-53,295.60

Finding the Fourth Proportional to 75,530.10, 113,331.60 and 53,295.60

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Solution

The fourth proportional to 75,530.10, 113,331.60 and 53,295.60 is: 79,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,530.10 : 113,331.60 = 53,295.60 : x
  2. Step 2: Convert to fraction form
    75,530.10/113,331.60 = 53,295.60/x
  3. Step 3: Cross multiply
    75,530.10x = 113,331.60 × 53,295.60
  4. Step 4: Simplify right side
    75,530.10x = 6,040,075,620.96
  5. Step 5: Solve for x
    x = 6,040,075,620.96/75,530.10
  6. Step 6: Final answer
    x = 79,969.12

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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.