Home / 212,050.36-318,075.27-54,278.86

Finding the Fourth Proportional to 212,050.36, 318,075.27 and 54,278.86

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Solution

The fourth proportional to 212,050.36, 318,075.27 and 54,278.86 is: 81,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,050.36 : 318,075.27 = 54,278.86 : x
  2. Step 2: Convert to fraction form
    212,050.36/318,075.27 = 54,278.86/x
  3. Step 3: Cross multiply
    212,050.36x = 318,075.27 × 54,278.86
  4. Step 4: Simplify right side
    212,050.36x = 17,264,763,049.79
  5. Step 5: Solve for x
    x = 17,264,763,049.79/212,050.36
  6. Step 6: Final answer
    x = 81,418.22

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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.