Home / 76,617.10-105,731.31-44,779.69

Finding the Fourth Proportional to 76,617.10, 105,731.31 and 44,779.69

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Solution

The fourth proportional to 76,617.10, 105,731.31 and 44,779.69 is: 61,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,617.10 : 105,731.31 = 44,779.69 : x
  2. Step 2: Convert to fraction form
    76,617.10/105,731.31 = 44,779.69/x
  3. Step 3: Cross multiply
    76,617.10x = 105,731.31 × 44,779.69
  4. Step 4: Simplify right side
    76,617.10x = 4,734,615,285.09
  5. Step 5: Solve for x
    x = 4,734,615,285.09/76,617.10
  6. Step 6: Final answer
    x = 61,795.80

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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.