Home / 56,790.36-85,025.16-30,075.75

Finding the Fourth Proportional to 56,790.36, 85,025.16 and 30,075.75

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Solution

The fourth proportional to 56,790.36, 85,025.16 and 30,075.75 is: 45,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,790.36 : 85,025.16 = 30,075.75 : x
  2. Step 2: Convert to fraction form
    56,790.36/85,025.16 = 30,075.75/x
  3. Step 3: Cross multiply
    56,790.36x = 85,025.16 × 30,075.75
  4. Step 4: Simplify right side
    56,790.36x = 2,557,195,455.87
  5. Step 5: Solve for x
    x = 2,557,195,455.87/56,790.36
  6. Step 6: Final answer
    x = 45,028.69

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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.