Home / 55,703.70-76,871.43-31,831.25

Finding the Fourth Proportional to 55,703.70, 76,871.43 and 31,831.25

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Solution

The fourth proportional to 55,703.70, 76,871.43 and 31,831.25 is: 43,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,703.70 : 76,871.43 = 31,831.25 : x
  2. Step 2: Convert to fraction form
    55,703.70/76,871.43 = 31,831.25/x
  3. Step 3: Cross multiply
    55,703.70x = 76,871.43 × 31,831.25
  4. Step 4: Simplify right side
    55,703.70x = 2,446,913,321.83
  5. Step 5: Solve for x
    x = 2,446,913,321.83/55,703.70
  6. Step 6: Final answer
    x = 43,927.30

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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.