Home / 78,509.27-108,296.56-49,391.24

Finding the Fourth Proportional to 78,509.27, 108,296.56 and 49,391.24

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Solution

The fourth proportional to 78,509.27, 108,296.56 and 49,391.24 is: 68,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,509.27 : 108,296.56 = 49,391.24 : x
  2. Step 2: Convert to fraction form
    78,509.27/108,296.56 = 49,391.24/x
  3. Step 3: Cross multiply
    78,509.27x = 108,296.56 × 49,391.24
  4. Step 4: Simplify right side
    78,509.27x = 5,348,901,386.13
  5. Step 5: Solve for x
    x = 5,348,901,386.13/78,509.27
  6. Step 6: Final answer
    x = 68,130.83

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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.