Home / 91,105.60-125,725.90-50,818.32

Finding the Fourth Proportional to 91,105.60, 125,725.90 and 50,818.32

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Solution

The fourth proportional to 91,105.60, 125,725.90 and 50,818.32 is: 70,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,105.60 : 125,725.90 = 50,818.32 : x
  2. Step 2: Convert to fraction form
    91,105.60/125,725.90 = 50,818.32/x
  3. Step 3: Cross multiply
    91,105.60x = 125,725.90 × 50,818.32
  4. Step 4: Simplify right side
    91,105.60x = 6,389,179,018.49
  5. Step 5: Solve for x
    x = 6,389,179,018.49/91,105.60
  6. Step 6: Final answer
    x = 70,129.38

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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.