Home / 56,378.43-84,534.80-21,320.82

Finding the Fourth Proportional to 56,378.43, 84,534.80 and 21,320.82

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Solution

The fourth proportional to 56,378.43, 84,534.80 and 21,320.82 is: 31,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,378.43 : 84,534.80 = 21,320.82 : x
  2. Step 2: Convert to fraction form
    56,378.43/84,534.80 = 21,320.82/x
  3. Step 3: Cross multiply
    56,378.43x = 84,534.80 × 21,320.82
  4. Step 4: Simplify right side
    56,378.43x = 1,802,351,147.93
  5. Step 5: Solve for x
    x = 1,802,351,147.93/56,378.43
  6. Step 6: Final answer
    x = 31,968.81

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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.