Home / 91,638.49-126,461.22-51,352.81

Finding the Fourth Proportional to 91,638.49, 126,461.22 and 51,352.81

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Solution

The fourth proportional to 91,638.49, 126,461.22 and 51,352.81 is: 70,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,638.49 : 126,461.22 = 51,352.81 : x
  2. Step 2: Convert to fraction form
    91,638.49/126,461.22 = 51,352.81/x
  3. Step 3: Cross multiply
    91,638.49x = 126,461.22 × 51,352.81
  4. Step 4: Simplify right side
    91,638.49x = 6,494,139,283.26
  5. Step 5: Solve for x
    x = 6,494,139,283.26/91,638.49
  6. Step 6: Final answer
    x = 70,866.94

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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.