Home / 72,216.24-108,302.49-19,618.89

Finding the Fourth Proportional to 72,216.24, 108,302.49 and 19,618.89

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Solution

The fourth proportional to 72,216.24, 108,302.49 and 19,618.89 is: 29,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216.24 : 108,302.49 = 19,618.89 : x
  2. Step 2: Convert to fraction form
    72,216.24/108,302.49 = 19,618.89/x
  3. Step 3: Cross multiply
    72,216.24x = 108,302.49 × 19,618.89
  4. Step 4: Simplify right side
    72,216.24x = 2,124,774,638.04
  5. Step 5: Solve for x
    x = 2,124,774,638.04/72,216.24
  6. Step 6: Final answer
    x = 29,422.39

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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.