Home / 74,730.12-112,119.80-30,344.96

Finding the Fourth Proportional to 74,730.12, 112,119.80 and 30,344.96

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Solution

The fourth proportional to 74,730.12, 112,119.80 and 30,344.96 is: 45,527.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.12 : 112,119.80 = 30,344.96 : x
  2. Step 2: Convert to fraction form
    74,730.12/112,119.80 = 30,344.96/x
  3. Step 3: Cross multiply
    74,730.12x = 112,119.80 × 30,344.96
  4. Step 4: Simplify right side
    74,730.12x = 3,402,270,133.88
  5. Step 5: Solve for x
    x = 3,402,270,133.88/74,730.12
  6. Step 6: Final answer
    x = 45,527.43

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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.