Home / 51,118.93-76,677.30-13,679.00

Finding the Fourth Proportional to 51,118.93, 76,677.30 and 13,679.00

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Solution

The fourth proportional to 51,118.93, 76,677.30 and 13,679.00 is: 20,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,118.93 : 76,677.30 = 13,679.00 : x
  2. Step 2: Convert to fraction form
    51,118.93/76,677.30 = 13,679.00/x
  3. Step 3: Cross multiply
    51,118.93x = 76,677.30 × 13,679.00
  4. Step 4: Simplify right side
    51,118.93x = 1,048,868,935.36
  5. Step 5: Solve for x
    x = 1,048,868,935.36/51,118.93
  6. Step 6: Final answer
    x = 20,518.21

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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.