Home / 81,412.22-112,403.70-50,831.89

Finding the Fourth Proportional to 81,412.22, 112,403.70 and 50,831.89

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Solution

The fourth proportional to 81,412.22, 112,403.70 and 50,831.89 is: 70,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,412.22 : 112,403.70 = 50,831.89 : x
  2. Step 2: Convert to fraction form
    81,412.22/112,403.70 = 50,831.89/x
  3. Step 3: Cross multiply
    81,412.22x = 112,403.70 × 50,831.89
  4. Step 4: Simplify right side
    81,412.22x = 5,713,692,232.98
  5. Step 5: Solve for x
    x = 5,713,692,232.98/81,412.22
  6. Step 6: Final answer
    x = 70,182.24

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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.