Home / 86,800.68-119,780.37-49,072.50

Finding the Fourth Proportional to 86,800.68, 119,780.37 and 49,072.50

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Solution

The fourth proportional to 86,800.68, 119,780.37 and 49,072.50 is: 67,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.68 : 119,780.37 = 49,072.50 : x
  2. Step 2: Convert to fraction form
    86,800.68/119,780.37 = 49,072.50/x
  3. Step 3: Cross multiply
    86,800.68x = 119,780.37 × 49,072.50
  4. Step 4: Simplify right side
    86,800.68x = 5,877,922,206.83
  5. Step 5: Solve for x
    x = 5,877,922,206.83/86,800.68
  6. Step 6: Final answer
    x = 67,717.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.