Home / 56,189.18-84,296.32-21,129.14

Finding the Fourth Proportional to 56,189.18, 84,296.32 and 21,129.14

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Solution

The fourth proportional to 56,189.18, 84,296.32 and 21,129.14 is: 31,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,189.18 : 84,296.32 = 21,129.14 : x
  2. Step 2: Convert to fraction form
    56,189.18/84,296.32 = 21,129.14/x
  3. Step 3: Cross multiply
    56,189.18x = 84,296.32 × 21,129.14
  4. Step 4: Simplify right side
    56,189.18x = 1,781,108,746.76
  5. Step 5: Solve for x
    x = 1,781,108,746.76/56,189.18
  6. Step 6: Final answer
    x = 31,698.43

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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.