Home / 57,018.74-78,684.47-31,524.44

Finding the Fourth Proportional to 57,018.74, 78,684.47 and 31,524.44

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Solution

The fourth proportional to 57,018.74, 78,684.47 and 31,524.44 is: 43,502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.74 : 78,684.47 = 31,524.44 : x
  2. Step 2: Convert to fraction form
    57,018.74/78,684.47 = 31,524.44/x
  3. Step 3: Cross multiply
    57,018.74x = 78,684.47 × 31,524.44
  4. Step 4: Simplify right side
    57,018.74x = 2,480,483,892.54
  5. Step 5: Solve for x
    x = 2,480,483,892.54/57,018.74
  6. Step 6: Final answer
    x = 43,502.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.