Home / 77,977.34-107,608.74-42,167.36

Finding the Fourth Proportional to 77,977.34, 107,608.74 and 42,167.36

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Solution

The fourth proportional to 77,977.34, 107,608.74 and 42,167.36 is: 58,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.34 : 107,608.74 = 42,167.36 : x
  2. Step 2: Convert to fraction form
    77,977.34/107,608.74 = 42,167.36/x
  3. Step 3: Cross multiply
    77,977.34x = 107,608.74 × 42,167.36
  4. Step 4: Simplify right side
    77,977.34x = 4,537,576,478.73
  5. Step 5: Solve for x
    x = 4,537,576,478.73/77,977.34
  6. Step 6: Final answer
    x = 58,190.96

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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.