Home / 91,256.45-125,932.57-50,970.78

Finding the Fourth Proportional to 91,256.45, 125,932.57 and 50,970.78

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Solution

The fourth proportional to 91,256.45, 125,932.57 and 50,970.78 is: 70,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,256.45 : 125,932.57 = 50,970.78 : x
  2. Step 2: Convert to fraction form
    91,256.45/125,932.57 = 50,970.78/x
  3. Step 3: Cross multiply
    91,256.45x = 125,932.57 × 50,970.78
  4. Step 4: Simplify right side
    91,256.45x = 6,418,881,192.88
  5. Step 5: Solve for x
    x = 6,418,881,192.88/91,256.45
  6. Step 6: Final answer
    x = 70,338.94

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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.