Home / 91,972.84-126,925.07-51,690.28

Finding the Fourth Proportional to 91,972.84, 126,925.07 and 51,690.28

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Solution

The fourth proportional to 91,972.84, 126,925.07 and 51,690.28 is: 71,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,972.84 : 126,925.07 = 51,690.28 : x
  2. Step 2: Convert to fraction form
    91,972.84/126,925.07 = 51,690.28/x
  3. Step 3: Cross multiply
    91,972.84x = 126,925.07 × 51,690.28
  4. Step 4: Simplify right side
    91,972.84x = 6,560,791,831.56
  5. Step 5: Solve for x
    x = 6,560,791,831.56/91,972.84
  6. Step 6: Final answer
    x = 71,334.02

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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.