Home / 72,569.25-108,849.02-19,979.19

Finding the Fourth Proportional to 72,569.25, 108,849.02 and 19,979.19

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Solution

The fourth proportional to 72,569.25, 108,849.02 and 19,979.19 is: 29,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,569.25 : 108,849.02 = 19,979.19 : x
  2. Step 2: Convert to fraction form
    72,569.25/108,849.02 = 19,979.19/x
  3. Step 3: Cross multiply
    72,569.25x = 108,849.02 × 19,979.19
  4. Step 4: Simplify right side
    72,569.25x = 2,174,715,152.00
  5. Step 5: Solve for x
    x = 2,174,715,152.00/72,569.25
  6. Step 6: Final answer
    x = 29,967.45

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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.