Home / 88,977.88-122,815.74-51,278.68

Finding the Fourth Proportional to 88,977.88, 122,815.74 and 51,278.68

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Solution

The fourth proportional to 88,977.88, 122,815.74 and 51,278.68 is: 70,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,977.88 : 122,815.74 = 51,278.68 : x
  2. Step 2: Convert to fraction form
    88,977.88/122,815.74 = 51,278.68/x
  3. Step 3: Cross multiply
    88,977.88x = 122,815.74 × 51,278.68
  4. Step 4: Simplify right side
    88,977.88x = 6,297,829,030.42
  5. Step 5: Solve for x
    x = 6,297,829,030.42/88,977.88
  6. Step 6: Final answer
    x = 70,779.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.