Home / 74,762.23-112,115.40-30,374.03

Finding the Fourth Proportional to 74,762.23, 112,115.40 and 30,374.03

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Solution

The fourth proportional to 74,762.23, 112,115.40 and 30,374.03 is: 45,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,762.23 : 112,115.40 = 30,374.03 : x
  2. Step 2: Convert to fraction form
    74,762.23/112,115.40 = 30,374.03/x
  3. Step 3: Cross multiply
    74,762.23x = 112,115.40 × 30,374.03
  4. Step 4: Simplify right side
    74,762.23x = 3,405,396,523.06
  5. Step 5: Solve for x
    x = 3,405,396,523.06/74,762.23
  6. Step 6: Final answer
    x = 45,549.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.