Home / 72,097.36-108,109.12-38,382.53

Finding the Fourth Proportional to 72,097.36, 108,109.12 and 38,382.53

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Solution

The fourth proportional to 72,097.36, 108,109.12 and 38,382.53 is: 57,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,097.36 : 108,109.12 = 38,382.53 : x
  2. Step 2: Convert to fraction form
    72,097.36/108,109.12 = 38,382.53/x
  3. Step 3: Cross multiply
    72,097.36x = 108,109.12 × 38,382.53
  4. Step 4: Simplify right side
    72,097.36x = 4,149,501,541.67
  5. Step 5: Solve for x
    x = 4,149,501,541.67/72,097.36
  6. Step 6: Final answer
    x = 57,554.14

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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.