Home / 78,395.59-108,173.09-46,157.38

Finding the Fourth Proportional to 78,395.59, 108,173.09 and 46,157.38

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Solution

The fourth proportional to 78,395.59, 108,173.09 and 46,157.38 is: 63,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,395.59 : 108,173.09 = 46,157.38 : x
  2. Step 2: Convert to fraction form
    78,395.59/108,173.09 = 46,157.38/x
  3. Step 3: Cross multiply
    78,395.59x = 108,173.09 × 46,157.38
  4. Step 4: Simplify right side
    78,395.59x = 4,992,986,265.86
  5. Step 5: Solve for x
    x = 4,992,986,265.86/78,395.59
  6. Step 6: Final answer
    x = 63,689.63

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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.