Home / 55,434.12-83,113.23-19,894.65

Finding the Fourth Proportional to 55,434.12, 83,113.23 and 19,894.65

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Solution

The fourth proportional to 55,434.12, 83,113.23 and 19,894.65 is: 29,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,434.12 : 83,113.23 = 19,894.65 : x
  2. Step 2: Convert to fraction form
    55,434.12/83,113.23 = 19,894.65/x
  3. Step 3: Cross multiply
    55,434.12x = 83,113.23 × 19,894.65
  4. Step 4: Simplify right side
    55,434.12x = 1,653,508,621.22
  5. Step 5: Solve for x
    x = 1,653,508,621.22/55,434.12
  6. Step 6: Final answer
    x = 29,828.36

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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.