Home / 91,939.14-126,860.67-54,220.86

Finding the Fourth Proportional to 91,939.14, 126,860.67 and 54,220.86

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Solution

The fourth proportional to 91,939.14, 126,860.67 and 54,220.86 is: 74,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.14 : 126,860.67 = 54,220.86 : x
  2. Step 2: Convert to fraction form
    91,939.14/126,860.67 = 54,220.86/x
  3. Step 3: Cross multiply
    91,939.14x = 126,860.67 × 54,220.86
  4. Step 4: Simplify right side
    91,939.14x = 6,878,494,627.58
  5. Step 5: Solve for x
    x = 6,878,494,627.58/91,939.14
  6. Step 6: Final answer
    x = 74,815.74

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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.