Home / 51,851.85-77,760.47-20,253.72

Finding the Fourth Proportional to 51,851.85, 77,760.47 and 20,253.72

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Solution

The fourth proportional to 51,851.85, 77,760.47 and 20,253.72 is: 30,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,851.85 : 77,760.47 = 20,253.72 : x
  2. Step 2: Convert to fraction form
    51,851.85/77,760.47 = 20,253.72/x
  3. Step 3: Cross multiply
    51,851.85x = 77,760.47 × 20,253.72
  4. Step 4: Simplify right side
    51,851.85x = 1,574,938,786.45
  5. Step 5: Solve for x
    x = 1,574,938,786.45/51,851.85
  6. Step 6: Final answer
    x = 30,373.82

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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.