Home / 91,517.16-126,293.73-51,231

Finding the Fourth Proportional to 91,517.16, 126,293.73 and 51,231

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Solution

The fourth proportional to 91,517.16, 126,293.73 and 51,231 is: 70,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,517.16 : 126,293.73 = 51,231 : x
  2. Step 2: Convert to fraction form
    91,517.16/126,293.73 = 51,231/x
  3. Step 3: Cross multiply
    91,517.16x = 126,293.73 × 51,231
  4. Step 4: Simplify right side
    91,517.16x = 6,470,154,081.63
  5. Step 5: Solve for x
    x = 6,470,154,081.63/91,517.16
  6. Step 6: Final answer
    x = 70,698.81

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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.