Home / 78,465.16-108,305.64-53,329.24

Finding the Fourth Proportional to 78,465.16, 108,305.64 and 53,329.24

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Solution

The fourth proportional to 78,465.16, 108,305.64 and 53,329.24 is: 73,610.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,465.16 : 108,305.64 = 53,329.24 : x
  2. Step 2: Convert to fraction form
    78,465.16/108,305.64 = 53,329.24/x
  3. Step 3: Cross multiply
    78,465.16x = 108,305.64 × 53,329.24
  4. Step 4: Simplify right side
    78,465.16x = 5,775,857,468.91
  5. Step 5: Solve for x
    x = 5,775,857,468.91/78,465.16
  6. Step 6: Final answer
    x = 73,610.47

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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.