Home / 74,237.76-102,449.44-40,703.36

Finding the Fourth Proportional to 74,237.76, 102,449.44 and 40,703.36

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Solution

The fourth proportional to 74,237.76, 102,449.44 and 40,703.36 is: 56,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,237.76 : 102,449.44 = 40,703.36 : x
  2. Step 2: Convert to fraction form
    74,237.76/102,449.44 = 40,703.36/x
  3. Step 3: Cross multiply
    74,237.76x = 102,449.44 × 40,703.36
  4. Step 4: Simplify right side
    74,237.76x = 4,170,036,438.12
  5. Step 5: Solve for x
    x = 4,170,036,438.12/74,237.76
  6. Step 6: Final answer
    x = 56,171.37

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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.