Home / 91,985.72-126,940.65-51,701.18

Finding the Fourth Proportional to 91,985.72, 126,940.65 and 51,701.18

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Solution

The fourth proportional to 91,985.72, 126,940.65 and 51,701.18 is: 71,347.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.72 : 126,940.65 = 51,701.18 : x
  2. Step 2: Convert to fraction form
    91,985.72/126,940.65 = 51,701.18/x
  3. Step 3: Cross multiply
    91,985.72x = 126,940.65 × 51,701.18
  4. Step 4: Simplify right side
    91,985.72x = 6,562,981,394.97
  5. Step 5: Solve for x
    x = 6,562,981,394.97/91,985.72
  6. Step 6: Final answer
    x = 71,347.83

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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.