Home / 91,977.52-126,929.42-53,739.25

Finding the Fourth Proportional to 91,977.52, 126,929.42 and 53,739.25

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Solution

The fourth proportional to 91,977.52, 126,929.42 and 53,739.25 is: 74,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,977.52 : 126,929.42 = 53,739.25 : x
  2. Step 2: Convert to fraction form
    91,977.52/126,929.42 = 53,739.25/x
  3. Step 3: Cross multiply
    91,977.52x = 126,929.42 × 53,739.25
  4. Step 4: Simplify right side
    91,977.52x = 6,821,091,833.74
  5. Step 5: Solve for x
    x = 6,821,091,833.74/91,977.52
  6. Step 6: Final answer
    x = 74,160.42

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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.