Home / 56,738.93-85,090.10-18,781.11

Finding the Fourth Proportional to 56,738.93, 85,090.10 and 18,781.11

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Solution

The fourth proportional to 56,738.93, 85,090.10 and 18,781.11 is: 28,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,738.93 : 85,090.10 = 18,781.11 : x
  2. Step 2: Convert to fraction form
    56,738.93/85,090.10 = 18,781.11/x
  3. Step 3: Cross multiply
    56,738.93x = 85,090.10 × 18,781.11
  4. Step 4: Simplify right side
    56,738.93x = 1,598,086,434.11
  5. Step 5: Solve for x
    x = 1,598,086,434.11/56,738.93
  6. Step 6: Final answer
    x = 28,165.61

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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.