Home / 74,628.72-102,984.48-42,775.56

Finding the Fourth Proportional to 74,628.72, 102,984.48 and 42,775.56

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Solution

The fourth proportional to 74,628.72, 102,984.48 and 42,775.56 is: 59,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,628.72 : 102,984.48 = 42,775.56 : x
  2. Step 2: Convert to fraction form
    74,628.72/102,984.48 = 42,775.56/x
  3. Step 3: Cross multiply
    74,628.72x = 102,984.48 × 42,775.56
  4. Step 4: Simplify right side
    74,628.72x = 4,405,218,803.31
  5. Step 5: Solve for x
    x = 4,405,218,803.31/74,628.72
  6. Step 6: Final answer
    x = 59,028.47

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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.