Home / 72,011.25-99,359.57-41,779.04

Finding the Fourth Proportional to 72,011.25, 99,359.57 and 41,779.04

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Solution

The fourth proportional to 72,011.25, 99,359.57 and 41,779.04 is: 57,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,011.25 : 99,359.57 = 41,779.04 : x
  2. Step 2: Convert to fraction form
    72,011.25/99,359.57 = 41,779.04/x
  3. Step 3: Cross multiply
    72,011.25x = 99,359.57 × 41,779.04
  4. Step 4: Simplify right side
    72,011.25x = 4,151,146,743.72
  5. Step 5: Solve for x
    x = 4,151,146,743.72/72,011.25
  6. Step 6: Final answer
    x = 57,645.81

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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.