Home / 76,544.72-105,633.48-43,011.28

Finding the Fourth Proportional to 76,544.72, 105,633.48 and 43,011.28

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Solution

The fourth proportional to 76,544.72, 105,633.48 and 43,011.28 is: 59,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,544.72 : 105,633.48 = 43,011.28 : x
  2. Step 2: Convert to fraction form
    76,544.72/105,633.48 = 43,011.28/x
  3. Step 3: Cross multiply
    76,544.72x = 105,633.48 × 43,011.28
  4. Step 4: Simplify right side
    76,544.72x = 4,543,431,185.65
  5. Step 5: Solve for x
    x = 4,543,431,185.65/76,544.72
  6. Step 6: Final answer
    x = 59,356.56

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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.