Home / 56,738.20-85,107.30-19,802.20

Finding the Fourth Proportional to 56,738.20, 85,107.30 and 19,802.20

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Solution

The fourth proportional to 56,738.20, 85,107.30 and 19,802.20 is: 29,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,738.20 : 85,107.30 = 19,802.20 : x
  2. Step 2: Convert to fraction form
    56,738.20/85,107.30 = 19,802.20/x
  3. Step 3: Cross multiply
    56,738.20x = 85,107.30 × 19,802.20
  4. Step 4: Simplify right side
    56,738.20x = 1,685,311,776.06
  5. Step 5: Solve for x
    x = 1,685,311,776.06/56,738.20
  6. Step 6: Final answer
    x = 29,703.30

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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.