Home / 66,218.13-91,320.48-49,264.83

Finding the Fourth Proportional to 66,218.13, 91,320.48 and 49,264.83

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Solution

The fourth proportional to 66,218.13, 91,320.48 and 49,264.83 is: 67,940.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.13 : 91,320.48 = 49,264.83 : x
  2. Step 2: Convert to fraction form
    66,218.13/91,320.48 = 49,264.83/x
  3. Step 3: Cross multiply
    66,218.13x = 91,320.48 × 49,264.83
  4. Step 4: Simplify right side
    66,218.13x = 4,498,887,922.72
  5. Step 5: Solve for x
    x = 4,498,887,922.72/66,218.13
  6. Step 6: Final answer
    x = 67,940.43

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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.