Home / 86,632.54-129,841.52-49,078.78

Finding the Fourth Proportional to 86,632.54, 129,841.52 and 49,078.78

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Solution

The fourth proportional to 86,632.54, 129,841.52 and 49,078.78 is: 73,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,632.54 : 129,841.52 = 49,078.78 : x
  2. Step 2: Convert to fraction form
    86,632.54/129,841.52 = 49,078.78/x
  3. Step 3: Cross multiply
    86,632.54x = 129,841.52 × 49,078.78
  4. Step 4: Simplify right side
    86,632.54x = 6,372,462,824.95
  5. Step 5: Solve for x
    x = 6,372,462,824.95/86,632.54
  6. Step 6: Final answer
    x = 73,557.38

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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.