Home / 91,258.45-125,935.33-50,972.78

Finding the Fourth Proportional to 91,258.45, 125,935.33 and 50,972.78

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Solution

The fourth proportional to 91,258.45, 125,935.33 and 50,972.78 is: 70,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,258.45 : 125,935.33 = 50,972.78 : x
  2. Step 2: Convert to fraction form
    91,258.45/125,935.33 = 50,972.78/x
  3. Step 3: Cross multiply
    91,258.45x = 125,935.33 × 50,972.78
  4. Step 4: Simplify right side
    91,258.45x = 6,419,273,870.32
  5. Step 5: Solve for x
    x = 6,419,273,870.32/91,258.45
  6. Step 6: Final answer
    x = 70,341.69

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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.