Home / 56,726.12-85,063.26-19,781.48

Finding the Fourth Proportional to 56,726.12, 85,063.26 and 19,781.48

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Solution

The fourth proportional to 56,726.12, 85,063.26 and 19,781.48 is: 29,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.12 : 85,063.26 = 19,781.48 : x
  2. Step 2: Convert to fraction form
    56,726.12/85,063.26 = 19,781.48/x
  3. Step 3: Cross multiply
    56,726.12x = 85,063.26 × 19,781.48
  4. Step 4: Simplify right side
    56,726.12x = 1,682,677,176.42
  5. Step 5: Solve for x
    x = 1,682,677,176.42/56,726.12
  6. Step 6: Final answer
    x = 29,663.18

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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.