Home / 56,073.44-84,086.40-20,988.64

Finding the Fourth Proportional to 56,073.44, 84,086.40 and 20,988.64

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Solution

The fourth proportional to 56,073.44, 84,086.40 and 20,988.64 is: 31,474.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,073.44 : 84,086.40 = 20,988.64 : x
  2. Step 2: Convert to fraction form
    56,073.44/84,086.40 = 20,988.64/x
  3. Step 3: Cross multiply
    56,073.44x = 84,086.40 × 20,988.64
  4. Step 4: Simplify right side
    56,073.44x = 1,764,859,178.50
  5. Step 5: Solve for x
    x = 1,764,859,178.50/56,073.44
  6. Step 6: Final answer
    x = 31,474.07

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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.