Home / 76,600.47-114,815.54-57,819.60

Finding the Fourth Proportional to 76,600.47, 114,815.54 and 57,819.60

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Solution

The fourth proportional to 76,600.47, 114,815.54 and 57,819.60 is: 86,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,600.47 : 114,815.54 = 57,819.60 : x
  2. Step 2: Convert to fraction form
    76,600.47/114,815.54 = 57,819.60/x
  3. Step 3: Cross multiply
    76,600.47x = 114,815.54 × 57,819.60
  4. Step 4: Simplify right side
    76,600.47x = 6,638,588,307.49
  5. Step 5: Solve for x
    x = 6,638,588,307.49/76,600.47
  6. Step 6: Final answer
    x = 86,665.11

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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.