Home / 51,315.68-70,815.96-30,095.36

Finding the Fourth Proportional to 51,315.68, 70,815.96 and 30,095.36

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Solution

The fourth proportional to 51,315.68, 70,815.96 and 30,095.36 is: 41,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.68 : 70,815.96 = 30,095.36 : x
  2. Step 2: Convert to fraction form
    51,315.68/70,815.96 = 30,095.36/x
  3. Step 3: Cross multiply
    51,315.68x = 70,815.96 × 30,095.36
  4. Step 4: Simplify right side
    51,315.68x = 2,131,231,809.95
  5. Step 5: Solve for x
    x = 2,131,231,809.95/51,315.68
  6. Step 6: Final answer
    x = 41,531.79

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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.