Home / 213,084.13-319,626.80-55,313.95

Finding the Fourth Proportional to 213,084.13, 319,626.80 and 55,313.95

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Solution

The fourth proportional to 213,084.13, 319,626.80 and 55,313.95 is: 82,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,084.13 : 319,626.80 = 55,313.95 : x
  2. Step 2: Convert to fraction form
    213,084.13/319,626.80 = 55,313.95/x
  3. Step 3: Cross multiply
    213,084.13x = 319,626.80 × 55,313.95
  4. Step 4: Simplify right side
    213,084.13x = 17,679,820,833.86
  5. Step 5: Solve for x
    x = 17,679,820,833.86/213,084.13
  6. Step 6: Final answer
    x = 82,971.08

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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.