Home / 91,242.45-125,911.97-50,405.76

Finding the Fourth Proportional to 91,242.45, 125,911.97 and 50,405.76

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Solution

The fourth proportional to 91,242.45, 125,911.97 and 50,405.76 is: 69,558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,242.45 : 125,911.97 = 50,405.76 : x
  2. Step 2: Convert to fraction form
    91,242.45/125,911.97 = 50,405.76/x
  3. Step 3: Cross multiply
    91,242.45x = 125,911.97 × 50,405.76
  4. Step 4: Simplify right side
    91,242.45x = 6,346,688,288.92
  5. Step 5: Solve for x
    x = 6,346,688,288.92/91,242.45
  6. Step 6: Final answer
    x = 69,558.50

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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.