Home / 51,873.63-77,830.05-20,306.25

Finding the Fourth Proportional to 51,873.63, 77,830.05 and 20,306.25

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Solution

The fourth proportional to 51,873.63, 77,830.05 and 20,306.25 is: 30,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,873.63 : 77,830.05 = 20,306.25 : x
  2. Step 2: Convert to fraction form
    51,873.63/77,830.05 = 20,306.25/x
  3. Step 3: Cross multiply
    51,873.63x = 77,830.05 × 20,306.25
  4. Step 4: Simplify right side
    51,873.63x = 1,580,436,452.81
  5. Step 5: Solve for x
    x = 1,580,436,452.81/51,873.63
  6. Step 6: Final answer
    x = 30,467.05

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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.