Home / 90,942.84-136,477.98-50,920.20

Finding the Fourth Proportional to 90,942.84, 136,477.98 and 50,920.20

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Solution

The fourth proportional to 90,942.84, 136,477.98 and 50,920.20 is: 76,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,942.84 : 136,477.98 = 50,920.20 : x
  2. Step 2: Convert to fraction form
    90,942.84/136,477.98 = 50,920.20/x
  3. Step 3: Cross multiply
    90,942.84x = 136,477.98 × 50,920.20
  4. Step 4: Simplify right side
    90,942.84x = 6,949,486,037.20
  5. Step 5: Solve for x
    x = 6,949,486,037.20/90,942.84
  6. Step 6: Final answer
    x = 76,415.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.