Home / 91,422.30-126,112-53,177.54

Finding the Fourth Proportional to 91,422.30, 126,112 and 53,177.54

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Solution

The fourth proportional to 91,422.30, 126,112 and 53,177.54 is: 73,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,422.30 : 126,112 = 53,177.54 : x
  2. Step 2: Convert to fraction form
    91,422.30/126,112 = 53,177.54/x
  3. Step 3: Cross multiply
    91,422.30x = 126,112 × 53,177.54
  4. Step 4: Simplify right side
    91,422.30x = 6,706,326,239.76
  5. Step 5: Solve for x
    x = 6,706,326,239.76/91,422.30
  6. Step 6: Final answer
    x = 73,355.47

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1.5x scale

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.