Home / 76,028.86-113,968.80-42,310.95

Finding the Fourth Proportional to 76,028.86, 113,968.80 and 42,310.95

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Solution

The fourth proportional to 76,028.86, 113,968.80 and 42,310.95 is: 63,424.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,028.86 : 113,968.80 = 42,310.95 : x
  2. Step 2: Convert to fraction form
    76,028.86/113,968.80 = 42,310.95/x
  3. Step 3: Cross multiply
    76,028.86x = 113,968.80 × 42,310.95
  4. Step 4: Simplify right side
    76,028.86x = 4,822,128,550.31
  5. Step 5: Solve for x
    x = 4,822,128,550.31/76,028.86
  6. Step 6: Final answer
    x = 63,424.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.