Home / 91,838.72-126,722.40-54,107.84

Finding the Fourth Proportional to 91,838.72, 126,722.40 and 54,107.84

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Solution

The fourth proportional to 91,838.72, 126,722.40 and 54,107.84 is: 74,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,838.72 : 126,722.40 = 54,107.84 : x
  2. Step 2: Convert to fraction form
    91,838.72/126,722.40 = 54,107.84/x
  3. Step 3: Cross multiply
    91,838.72x = 126,722.40 × 54,107.84
  4. Step 4: Simplify right side
    91,838.72x = 6,856,675,343.62
  5. Step 5: Solve for x
    x = 6,856,675,343.62/91,838.72
  6. Step 6: Final answer
    x = 74,659.96

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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.