Home / 91,962.81-126,910.94-51,674.15

Finding the Fourth Proportional to 91,962.81, 126,910.94 and 51,674.15

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Solution

The fourth proportional to 91,962.81, 126,910.94 and 51,674.15 is: 71,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,962.81 : 126,910.94 = 51,674.15 : x
  2. Step 2: Convert to fraction form
    91,962.81/126,910.94 = 51,674.15/x
  3. Step 3: Cross multiply
    91,962.81x = 126,910.94 × 51,674.15
  4. Step 4: Simplify right side
    91,962.81x = 6,558,015,009.11
  5. Step 5: Solve for x
    x = 6,558,015,009.11/91,962.81
  6. Step 6: Final answer
    x = 71,311.60

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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.