Home / 68,779.42-94,961.82-42,977.32

Finding the Fourth Proportional to 68,779.42, 94,961.82 and 42,977.32

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Solution

The fourth proportional to 68,779.42, 94,961.82 and 42,977.32 is: 59,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,779.42 : 94,961.82 = 42,977.32 : x
  2. Step 2: Convert to fraction form
    68,779.42/94,961.82 = 42,977.32/x
  3. Step 3: Cross multiply
    68,779.42x = 94,961.82 × 42,977.32
  4. Step 4: Simplify right side
    68,779.42x = 4,081,204,525.92
  5. Step 5: Solve for x
    x = 4,081,204,525.92/68,779.42
  6. Step 6: Final answer
    x = 59,337.58

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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.