Home / 90,421.12-124,794.06-50,143.84

Finding the Fourth Proportional to 90,421.12, 124,794.06 and 50,143.84

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Solution

The fourth proportional to 90,421.12, 124,794.06 and 50,143.84 is: 69,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,421.12 : 124,794.06 = 50,143.84 : x
  2. Step 2: Convert to fraction form
    90,421.12/124,794.06 = 50,143.84/x
  3. Step 3: Cross multiply
    90,421.12x = 124,794.06 × 50,143.84
  4. Step 4: Simplify right side
    90,421.12x = 6,257,653,377.59
  5. Step 5: Solve for x
    x = 6,257,653,377.59/90,421.12
  6. Step 6: Final answer
    x = 69,205.66

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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.