Home / 91,638.96-126,461.56-55,828.94

Finding the Fourth Proportional to 91,638.96, 126,461.56 and 55,828.94

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Solution

The fourth proportional to 91,638.96, 126,461.56 and 55,828.94 is: 77,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,638.96 : 126,461.56 = 55,828.94 : x
  2. Step 2: Convert to fraction form
    91,638.96/126,461.56 = 55,828.94/x
  3. Step 3: Cross multiply
    91,638.96x = 126,461.56 × 55,828.94
  4. Step 4: Simplify right side
    91,638.96x = 7,060,214,845.55
  5. Step 5: Solve for x
    x = 7,060,214,845.55/91,638.96
  6. Step 6: Final answer
    x = 77,043.81

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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.