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Finding the Fourth Proportional to 56,358.98, 84,544.10 and 20,829.63

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Solution

The fourth proportional to 56,358.98, 84,544.10 and 20,829.63 is: 31,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.98 : 84,544.10 = 20,829.63 : x
  2. Step 2: Convert to fraction form
    56,358.98/84,544.10 = 20,829.63/x
  3. Step 3: Cross multiply
    56,358.98x = 84,544.10 × 20,829.63
  4. Step 4: Simplify right side
    56,358.98x = 1,761,022,321.68
  5. Step 5: Solve for x
    x = 1,761,022,321.68/56,358.98
  6. Step 6: Final answer
    x = 31,246.53

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1.5x scale

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.