Home / 74,846.71-112,172.82-30,421.72

Finding the Fourth Proportional to 74,846.71, 112,172.82 and 30,421.72

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Solution

The fourth proportional to 74,846.71, 112,172.82 and 30,421.72 is: 45,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,846.71 : 112,172.82 = 30,421.72 : x
  2. Step 2: Convert to fraction form
    74,846.71/112,172.82 = 30,421.72/x
  3. Step 3: Cross multiply
    74,846.71x = 112,172.82 × 30,421.72
  4. Step 4: Simplify right side
    74,846.71x = 3,412,490,121.65
  5. Step 5: Solve for x
    x = 3,412,490,121.65/74,846.71
  6. Step 6: Final answer
    x = 45,593.05

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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.