Home / 66,831.48-92,208.78-52,640.28

Finding the Fourth Proportional to 66,831.48, 92,208.78 and 52,640.28

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Solution

The fourth proportional to 66,831.48, 92,208.78 and 52,640.28 is: 72,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,831.48 : 92,208.78 = 52,640.28 : x
  2. Step 2: Convert to fraction form
    66,831.48/92,208.78 = 52,640.28/x
  3. Step 3: Cross multiply
    66,831.48x = 92,208.78 × 52,640.28
  4. Step 4: Simplify right side
    66,831.48x = 4,853,895,997.66
  5. Step 5: Solve for x
    x = 4,853,895,997.66/66,831.48
  6. Step 6: Final answer
    x = 72,628.89

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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.