Home / 45,258.14-67,890.54-11,977.98

Finding the Fourth Proportional to 45,258.14, 67,890.54 and 11,977.98

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Solution

The fourth proportional to 45,258.14, 67,890.54 and 11,977.98 is: 17,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,258.14 : 67,890.54 = 11,977.98 : x
  2. Step 2: Convert to fraction form
    45,258.14/67,890.54 = 11,977.98/x
  3. Step 3: Cross multiply
    45,258.14x = 67,890.54 × 11,977.98
  4. Step 4: Simplify right side
    45,258.14x = 813,191,575.23
  5. Step 5: Solve for x
    x = 813,191,575.23/45,258.14
  6. Step 6: Final answer
    x = 17,967.85

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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.