Home / 213,084.12-319,626.80-55,313.94

Finding the Fourth Proportional to 213,084.12, 319,626.80 and 55,313.94

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Solution

The fourth proportional to 213,084.12, 319,626.80 and 55,313.94 is: 82,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,084.12 : 319,626.80 = 55,313.94 : x
  2. Step 2: Convert to fraction form
    213,084.12/319,626.80 = 55,313.94/x
  3. Step 3: Cross multiply
    213,084.12x = 319,626.80 × 55,313.94
  4. Step 4: Simplify right side
    213,084.12x = 17,679,817,637.59
  5. Step 5: Solve for x
    x = 17,679,817,637.59/213,084.12
  6. Step 6: Final answer
    x = 82,971.07

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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.