Home / 51,093.68-70,511.26-30,939.16

Finding the Fourth Proportional to 51,093.68, 70,511.26 and 30,939.16

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Solution

The fourth proportional to 51,093.68, 70,511.26 and 30,939.16 is: 42,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,093.68 : 70,511.26 = 30,939.16 : x
  2. Step 2: Convert to fraction form
    51,093.68/70,511.26 = 30,939.16/x
  3. Step 3: Cross multiply
    51,093.68x = 70,511.26 × 30,939.16
  4. Step 4: Simplify right side
    51,093.68x = 2,181,559,154.94
  5. Step 5: Solve for x
    x = 2,181,559,154.94/51,093.68
  6. Step 6: Final answer
    x = 42,697.24

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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.