Home / 75,779.86-104,571.90-47,098.78

Finding the Fourth Proportional to 75,779.86, 104,571.90 and 47,098.78

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Solution

The fourth proportional to 75,779.86, 104,571.90 and 47,098.78 is: 64,993.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,779.86 : 104,571.90 = 47,098.78 : x
  2. Step 2: Convert to fraction form
    75,779.86/104,571.90 = 47,098.78/x
  3. Step 3: Cross multiply
    75,779.86x = 104,571.90 × 47,098.78
  4. Step 4: Simplify right side
    75,779.86x = 4,925,208,912.28
  5. Step 5: Solve for x
    x = 4,925,208,912.28/75,779.86
  6. Step 6: Final answer
    x = 64,993.64

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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.