Home / 213,342.08-320,031.36-55,570.56

Finding the Fourth Proportional to 213,342.08, 320,031.36 and 55,570.56

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Solution

The fourth proportional to 213,342.08, 320,031.36 and 55,570.56 is: 83,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,342.08 : 320,031.36 = 55,570.56 : x
  2. Step 2: Convert to fraction form
    213,342.08/320,031.36 = 55,570.56/x
  3. Step 3: Cross multiply
    213,342.08x = 320,031.36 × 55,570.56
  4. Step 4: Simplify right side
    213,342.08x = 17,784,321,892.76
  5. Step 5: Solve for x
    x = 17,784,321,892.76/213,342.08
  6. Step 6: Final answer
    x = 83,360.59

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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.