Home / 54,939.45-82,409.18-19,870.91

Finding the Fourth Proportional to 54,939.45, 82,409.18 and 19,870.91

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Solution

The fourth proportional to 54,939.45, 82,409.18 and 19,870.91 is: 29,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,939.45 : 82,409.18 = 19,870.91 : x
  2. Step 2: Convert to fraction form
    54,939.45/82,409.18 = 19,870.91/x
  3. Step 3: Cross multiply
    54,939.45x = 82,409.18 × 19,870.91
  4. Step 4: Simplify right side
    54,939.45x = 1,637,544,887.55
  5. Step 5: Solve for x
    x = 1,637,544,887.55/54,939.45
  6. Step 6: Final answer
    x = 29,806.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.