Home / 90,212.12-124,491.95-49,924.86

Finding the Fourth Proportional to 90,212.12, 124,491.95 and 49,924.86

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Solution

The fourth proportional to 90,212.12, 124,491.95 and 49,924.86 is: 68,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,212.12 : 124,491.95 = 49,924.86 : x
  2. Step 2: Convert to fraction form
    90,212.12/124,491.95 = 49,924.86/x
  3. Step 3: Cross multiply
    90,212.12x = 124,491.95 × 49,924.86
  4. Step 4: Simplify right side
    90,212.12x = 6,215,243,174.88
  5. Step 5: Solve for x
    x = 6,215,243,174.88/90,212.12
  6. Step 6: Final answer
    x = 68,895.88

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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.