Home / 56,185.68-84,291.10-21,125.64

Finding the Fourth Proportional to 56,185.68, 84,291.10 and 21,125.64

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Solution

The fourth proportional to 56,185.68, 84,291.10 and 21,125.64 is: 31,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,185.68 : 84,291.10 = 21,125.64 : x
  2. Step 2: Convert to fraction form
    56,185.68/84,291.10 = 21,125.64/x
  3. Step 3: Cross multiply
    56,185.68x = 84,291.10 × 21,125.64
  4. Step 4: Simplify right side
    56,185.68x = 1,780,703,433.80
  5. Step 5: Solve for x
    x = 1,780,703,433.80/56,185.68
  6. Step 6: Final answer
    x = 31,693.19

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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.