Home / 72,555.14-108,813.27-19,967.51

Finding the Fourth Proportional to 72,555.14, 108,813.27 and 19,967.51

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Solution

The fourth proportional to 72,555.14, 108,813.27 and 19,967.51 is: 29,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.14 : 108,813.27 = 19,967.51 : x
  2. Step 2: Convert to fraction form
    72,555.14/108,813.27 = 19,967.51/x
  3. Step 3: Cross multiply
    72,555.14x = 108,813.27 × 19,967.51
  4. Step 4: Simplify right side
    72,555.14x = 2,172,730,403.77
  5. Step 5: Solve for x
    x = 2,172,730,403.77/72,555.14
  6. Step 6: Final answer
    x = 29,945.92

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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.