Home / 56,356.56-84,485.03-21,271.61

Finding the Fourth Proportional to 56,356.56, 84,485.03 and 21,271.61

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Solution

The fourth proportional to 56,356.56, 84,485.03 and 21,271.61 is: 31,888.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.56 : 84,485.03 = 21,271.61 : x
  2. Step 2: Convert to fraction form
    56,356.56/84,485.03 = 21,271.61/x
  3. Step 3: Cross multiply
    56,356.56x = 84,485.03 × 21,271.61
  4. Step 4: Simplify right side
    56,356.56x = 1,797,132,713.85
  5. Step 5: Solve for x
    x = 1,797,132,713.85/56,356.56
  6. Step 6: Final answer
    x = 31,888.62

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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.