Home / 55,328.97-82,973.09-19,780.68

Finding the Fourth Proportional to 55,328.97, 82,973.09 and 19,780.68

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Solution

The fourth proportional to 55,328.97, 82,973.09 and 19,780.68 is: 29,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,328.97 : 82,973.09 = 19,780.68 : x
  2. Step 2: Convert to fraction form
    55,328.97/82,973.09 = 19,780.68/x
  3. Step 3: Cross multiply
    55,328.97x = 82,973.09 × 19,780.68
  4. Step 4: Simplify right side
    55,328.97x = 1,641,264,043.00
  5. Step 5: Solve for x
    x = 1,641,264,043.00/55,328.97
  6. Step 6: Final answer
    x = 29,663.74

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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.