Home / 92,120.49-127,133.75-51,831.90

Finding the Fourth Proportional to 92,120.49, 127,133.75 and 51,831.90

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Solution

The fourth proportional to 92,120.49, 127,133.75 and 51,831.90 is: 71,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,120.49 : 127,133.75 = 51,831.90 : x
  2. Step 2: Convert to fraction form
    92,120.49/127,133.75 = 51,831.90/x
  3. Step 3: Cross multiply
    92,120.49x = 127,133.75 × 51,831.90
  4. Step 4: Simplify right side
    92,120.49x = 6,589,583,946.20
  5. Step 5: Solve for x
    x = 6,589,583,946.20/92,120.49
  6. Step 6: Final answer
    x = 71,532.23

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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.