Home / 56,716.23-85,108.77-21,203.40

Finding the Fourth Proportional to 56,716.23, 85,108.77 and 21,203.40

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Solution

The fourth proportional to 56,716.23, 85,108.77 and 21,203.40 is: 31,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.23 : 85,108.77 = 21,203.40 : x
  2. Step 2: Convert to fraction form
    56,716.23/85,108.77 = 21,203.40/x
  3. Step 3: Cross multiply
    56,716.23x = 85,108.77 × 21,203.40
  4. Step 4: Simplify right side
    56,716.23x = 1,804,595,293.82
  5. Step 5: Solve for x
    x = 1,804,595,293.82/56,716.23
  6. Step 6: Final answer
    x = 31,817.97

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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.