Home / 91,451.81-126,208.42-51,163.18

Finding the Fourth Proportional to 91,451.81, 126,208.42 and 51,163.18

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Solution

The fourth proportional to 91,451.81, 126,208.42 and 51,163.18 is: 70,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,451.81 : 126,208.42 = 51,163.18 : x
  2. Step 2: Convert to fraction form
    91,451.81/126,208.42 = 51,163.18/x
  3. Step 3: Cross multiply
    91,451.81x = 126,208.42 × 51,163.18
  4. Step 4: Simplify right side
    91,451.81x = 6,457,223,666.55
  5. Step 5: Solve for x
    x = 6,457,223,666.55/91,451.81
  6. Step 6: Final answer
    x = 70,607.94

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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.