Home / 212,638.77-318,959.55-54,868.59

Finding the Fourth Proportional to 212,638.77, 318,959.55 and 54,868.59

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Solution

The fourth proportional to 212,638.77, 318,959.55 and 54,868.59 is: 82,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,638.77 : 318,959.55 = 54,868.59 : x
  2. Step 2: Convert to fraction form
    212,638.77/318,959.55 = 54,868.59/x
  3. Step 3: Cross multiply
    212,638.77x = 318,959.55 × 54,868.59
  4. Step 4: Simplify right side
    212,638.77x = 17,500,860,775.53
  5. Step 5: Solve for x
    x = 17,500,860,775.53/212,638.77
  6. Step 6: Final answer
    x = 82,303.24

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1.5x scale

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.