Home / 91,215.72-125,876.50-50,930.17

Finding the Fourth Proportional to 91,215.72, 125,876.50 and 50,930.17

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Solution

The fourth proportional to 91,215.72, 125,876.50 and 50,930.17 is: 70,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,215.72 : 125,876.50 = 50,930.17 : x
  2. Step 2: Convert to fraction form
    91,215.72/125,876.50 = 50,930.17/x
  3. Step 3: Cross multiply
    91,215.72x = 125,876.50 × 50,930.17
  4. Step 4: Simplify right side
    91,215.72x = 6,410,911,544.01
  5. Step 5: Solve for x
    x = 6,410,911,544.01/91,215.72
  6. Step 6: Final answer
    x = 70,282.97

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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.