Home / 78,677.30-108,575.16-46,847.54

Finding the Fourth Proportional to 78,677.30, 108,575.16 and 46,847.54

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Solution

The fourth proportional to 78,677.30, 108,575.16 and 46,847.54 is: 64,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,677.30 : 108,575.16 = 46,847.54 : x
  2. Step 2: Convert to fraction form
    78,677.30/108,575.16 = 46,847.54/x
  3. Step 3: Cross multiply
    78,677.30x = 108,575.16 × 46,847.54
  4. Step 4: Simplify right side
    78,677.30x = 5,086,479,151.11
  5. Step 5: Solve for x
    x = 5,086,479,151.11/78,677.30
  6. Step 6: Final answer
    x = 64,649.89

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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.