Home / 86,429.73-119,230.63-57,756.44

Finding the Fourth Proportional to 86,429.73, 119,230.63 and 57,756.44

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Solution

The fourth proportional to 86,429.73, 119,230.63 and 57,756.44 is: 79,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.73 : 119,230.63 = 57,756.44 : x
  2. Step 2: Convert to fraction form
    86,429.73/119,230.63 = 57,756.44/x
  3. Step 3: Cross multiply
    86,429.73x = 119,230.63 × 57,756.44
  4. Step 4: Simplify right side
    86,429.73x = 6,886,336,203.80
  5. Step 5: Solve for x
    x = 6,886,336,203.80/86,429.73
  6. Step 6: Final answer
    x = 79,675.55

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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.