Home / 90,134.39-124,384.73-49,849.85

Finding the Fourth Proportional to 90,134.39, 124,384.73 and 49,849.85

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Solution

The fourth proportional to 90,134.39, 124,384.73 and 49,849.85 is: 68,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,134.39 : 124,384.73 = 49,849.85 : x
  2. Step 2: Convert to fraction form
    90,134.39/124,384.73 = 49,849.85/x
  3. Step 3: Cross multiply
    90,134.39x = 124,384.73 × 49,849.85
  4. Step 4: Simplify right side
    90,134.39x = 6,200,559,261.62
  5. Step 5: Solve for x
    x = 6,200,559,261.62/90,134.39
  6. Step 6: Final answer
    x = 68,792.38

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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.