Home / 91,860.64-126,780.36-51,033.92

Finding the Fourth Proportional to 91,860.64, 126,780.36 and 51,033.92

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Solution

The fourth proportional to 91,860.64, 126,780.36 and 51,033.92 is: 70,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,860.64 : 126,780.36 = 51,033.92 : x
  2. Step 2: Convert to fraction form
    91,860.64/126,780.36 = 51,033.92/x
  3. Step 3: Cross multiply
    91,860.64x = 126,780.36 × 51,033.92
  4. Step 4: Simplify right side
    91,860.64x = 6,470,098,749.81
  5. Step 5: Solve for x
    x = 6,470,098,749.81/91,860.64
  6. Step 6: Final answer
    x = 70,433.85

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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.