Home / 51,071.58-76,607.40-13,631.81

Finding the Fourth Proportional to 51,071.58, 76,607.40 and 13,631.81

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Solution

The fourth proportional to 51,071.58, 76,607.40 and 13,631.81 is: 20,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.58 : 76,607.40 = 13,631.81 : x
  2. Step 2: Convert to fraction form
    51,071.58/76,607.40 = 13,631.81/x
  3. Step 3: Cross multiply
    51,071.58x = 76,607.40 × 13,631.81
  4. Step 4: Simplify right side
    51,071.58x = 1,044,297,138.36
  5. Step 5: Solve for x
    x = 1,044,297,138.36/51,071.58
  6. Step 6: Final answer
    x = 20,447.72

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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.