Home / 91,021.12-125,609.71-50,737.44

Finding the Fourth Proportional to 91,021.12, 125,609.71 and 50,737.44

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Solution

The fourth proportional to 91,021.12, 125,609.71 and 50,737.44 is: 70,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,021.12 : 125,609.71 = 50,737.44 : x
  2. Step 2: Convert to fraction form
    91,021.12/125,609.71 = 50,737.44/x
  3. Step 3: Cross multiply
    91,021.12x = 125,609.71 × 50,737.44
  4. Step 4: Simplify right side
    91,021.12x = 6,373,115,124.54
  5. Step 5: Solve for x
    x = 6,373,115,124.54/91,021.12
  6. Step 6: Final answer
    x = 70,017.98

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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.