Home / 90,218.22-124,501.41-49,934.78

Finding the Fourth Proportional to 90,218.22, 124,501.41 and 49,934.78

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Solution

The fourth proportional to 90,218.22, 124,501.41 and 49,934.78 is: 68,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.22 : 124,501.41 = 49,934.78 : x
  2. Step 2: Convert to fraction form
    90,218.22/124,501.41 = 49,934.78/x
  3. Step 3: Cross multiply
    90,218.22x = 124,501.41 × 49,934.78
  4. Step 4: Simplify right side
    90,218.22x = 6,216,950,518.04
  5. Step 5: Solve for x
    x = 6,216,950,518.04/90,218.22
  6. Step 6: Final answer
    x = 68,910.14

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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.