Home / 57,818.70-86,740.44-20,377.26

Finding the Fourth Proportional to 57,818.70, 86,740.44 and 20,377.26

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Solution

The fourth proportional to 57,818.70, 86,740.44 and 20,377.26 is: 30,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.70 : 86,740.44 = 20,377.26 : x
  2. Step 2: Convert to fraction form
    57,818.70/86,740.44 = 20,377.26/x
  3. Step 3: Cross multiply
    57,818.70x = 86,740.44 × 20,377.26
  4. Step 4: Simplify right side
    57,818.70x = 1,767,532,498.39
  5. Step 5: Solve for x
    x = 1,767,532,498.39/57,818.70
  6. Step 6: Final answer
    x = 30,570.26

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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.