Home / 92,819.84-128,091.80-50,378.36

Finding the Fourth Proportional to 92,819.84, 128,091.80 and 50,378.36

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Solution

The fourth proportional to 92,819.84, 128,091.80 and 50,378.36 is: 69,522.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,819.84 : 128,091.80 = 50,378.36 : x
  2. Step 2: Convert to fraction form
    92,819.84/128,091.80 = 50,378.36/x
  3. Step 3: Cross multiply
    92,819.84x = 128,091.80 × 50,378.36
  4. Step 4: Simplify right side
    92,819.84x = 6,453,054,813.45
  5. Step 5: Solve for x
    x = 6,453,054,813.45/92,819.84
  6. Step 6: Final answer
    x = 69,522.37

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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.