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Finding the Fourth Proportional to 91,255.95, 125,920.75 and 50,964.57

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Solution

The fourth proportional to 91,255.95, 125,920.75 and 50,964.57 is: 70,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,255.95 : 125,920.75 = 50,964.57 : x
  2. Step 2: Convert to fraction form
    91,255.95/125,920.75 = 50,964.57/x
  3. Step 3: Cross multiply
    91,255.95x = 125,920.75 × 50,964.57
  4. Step 4: Simplify right side
    91,255.95x = 6,417,496,877.83
  5. Step 5: Solve for x
    x = 6,417,496,877.83/91,255.95
  6. Step 6: Final answer
    x = 70,324.15

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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.