Home / 212,783.04-319,185.51-55,012.86

Finding the Fourth Proportional to 212,783.04, 319,185.51 and 55,012.86

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Solution

The fourth proportional to 212,783.04, 319,185.51 and 55,012.86 is: 82,522.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,783.04 : 319,185.51 = 55,012.86 : x
  2. Step 2: Convert to fraction form
    212,783.04/319,185.51 = 55,012.86/x
  3. Step 3: Cross multiply
    212,783.04x = 319,185.51 × 55,012.86
  4. Step 4: Simplify right side
    212,783.04x = 17,559,307,775.66
  5. Step 5: Solve for x
    x = 17,559,307,775.66/212,783.04
  6. Step 6: Final answer
    x = 82,522.12

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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.