Home / 51,007.60-76,511.40-19,822.60

Finding the Fourth Proportional to 51,007.60, 76,511.40 and 19,822.60

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Solution

The fourth proportional to 51,007.60, 76,511.40 and 19,822.60 is: 29,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,007.60 : 76,511.40 = 19,822.60 : x
  2. Step 2: Convert to fraction form
    51,007.60/76,511.40 = 19,822.60/x
  3. Step 3: Cross multiply
    51,007.60x = 76,511.40 × 19,822.60
  4. Step 4: Simplify right side
    51,007.60x = 1,516,654,877.64
  5. Step 5: Solve for x
    x = 1,516,654,877.64/51,007.60
  6. Step 6: Final answer
    x = 29,733.90

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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.