Home / 212,782.05-319,184.01-55,011.87

Finding the Fourth Proportional to 212,782.05, 319,184.01 and 55,011.87

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Solution

The fourth proportional to 212,782.05, 319,184.01 and 55,011.87 is: 82,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,782.05 : 319,184.01 = 55,011.87 : x
  2. Step 2: Convert to fraction form
    212,782.05/319,184.01 = 55,011.87/x
  3. Step 3: Cross multiply
    212,782.05x = 319,184.01 × 55,011.87
  4. Step 4: Simplify right side
    212,782.05x = 17,558,909,264.20
  5. Step 5: Solve for x
    x = 17,558,909,264.20/212,782.05
  6. Step 6: Final answer
    x = 82,520.63

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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.