Home / 56,721.81-85,090.61-25,129.38

Finding the Fourth Proportional to 56,721.81, 85,090.61 and 25,129.38

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Solution

The fourth proportional to 56,721.81, 85,090.61 and 25,129.38 is: 37,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.81 : 85,090.61 = 25,129.38 : x
  2. Step 2: Convert to fraction form
    56,721.81/85,090.61 = 25,129.38/x
  3. Step 3: Cross multiply
    56,721.81x = 85,090.61 × 25,129.38
  4. Step 4: Simplify right side
    56,721.81x = 2,138,274,273.12
  5. Step 5: Solve for x
    x = 2,138,274,273.12/56,721.81
  6. Step 6: Final answer
    x = 37,697.57

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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.