Home / 213,947.56-320,907.90-56,172.52

Finding the Fourth Proportional to 213,947.56, 320,907.90 and 56,172.52

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Solution

The fourth proportional to 213,947.56, 320,907.90 and 56,172.52 is: 84,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,947.56 : 320,907.90 = 56,172.52 : x
  2. Step 2: Convert to fraction form
    213,947.56/320,907.90 = 56,172.52/x
  3. Step 3: Cross multiply
    213,947.56x = 320,907.90 × 56,172.52
  4. Step 4: Simplify right side
    213,947.56x = 18,026,205,430.91
  5. Step 5: Solve for x
    x = 18,026,205,430.91/213,947.56
  6. Step 6: Final answer
    x = 84,255.25

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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.