Home / 86,860.68-119,870.46-49,132.50

Finding the Fourth Proportional to 86,860.68, 119,870.46 and 49,132.50

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Solution

The fourth proportional to 86,860.68, 119,870.46 and 49,132.50 is: 67,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.68 : 119,870.46 = 49,132.50 : x
  2. Step 2: Convert to fraction form
    86,860.68/119,870.46 = 49,132.50/x
  3. Step 3: Cross multiply
    86,860.68x = 119,870.46 × 49,132.50
  4. Step 4: Simplify right side
    86,860.68x = 5,889,535,375.95
  5. Step 5: Solve for x
    x = 5,889,535,375.95/86,860.68
  6. Step 6: Final answer
    x = 67,804.39

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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.