Home / 91,518.32-126,297.42-51,231.08

Finding the Fourth Proportional to 91,518.32, 126,297.42 and 51,231.08

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Solution

The fourth proportional to 91,518.32, 126,297.42 and 51,231.08 is: 70,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,518.32 : 126,297.42 = 51,231.08 : x
  2. Step 2: Convert to fraction form
    91,518.32/126,297.42 = 51,231.08/x
  3. Step 3: Cross multiply
    91,518.32x = 126,297.42 × 51,231.08
  4. Step 4: Simplify right side
    91,518.32x = 6,470,353,227.81
  5. Step 5: Solve for x
    x = 6,470,353,227.81/91,518.32
  6. Step 6: Final answer
    x = 70,700.09

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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.