Home / 56,188.64-84,295.26-21,128.29

Finding the Fourth Proportional to 56,188.64, 84,295.26 and 21,128.29

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Solution

The fourth proportional to 56,188.64, 84,295.26 and 21,128.29 is: 31,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,188.64 : 84,295.26 = 21,128.29 : x
  2. Step 2: Convert to fraction form
    56,188.64/84,295.26 = 21,128.29/x
  3. Step 3: Cross multiply
    56,188.64x = 84,295.26 × 21,128.29
  4. Step 4: Simplify right side
    56,188.64x = 1,781,014,698.91
  5. Step 5: Solve for x
    x = 1,781,014,698.91/56,188.64
  6. Step 6: Final answer
    x = 31,697.06

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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.