Home / 78,539.10-108,369.27-46,715.82

Finding the Fourth Proportional to 78,539.10, 108,369.27 and 46,715.82

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Solution

The fourth proportional to 78,539.10, 108,369.27 and 46,715.82 is: 64,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,539.10 : 108,369.27 = 46,715.82 : x
  2. Step 2: Convert to fraction form
    78,539.10/108,369.27 = 46,715.82/x
  3. Step 3: Cross multiply
    78,539.10x = 108,369.27 × 46,715.82
  4. Step 4: Simplify right side
    78,539.10x = 5,062,559,310.85
  5. Step 5: Solve for x
    x = 5,062,559,310.85/78,539.10
  6. Step 6: Final answer
    x = 64,459.10

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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.