Home / 78,525.86-108,364.11-42,716.75

Finding the Fourth Proportional to 78,525.86, 108,364.11 and 42,716.75

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Solution

The fourth proportional to 78,525.86, 108,364.11 and 42,716.75 is: 58,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,525.86 : 108,364.11 = 42,716.75 : x
  2. Step 2: Convert to fraction form
    78,525.86/108,364.11 = 42,716.75/x
  3. Step 3: Cross multiply
    78,525.86x = 108,364.11 × 42,716.75
  4. Step 4: Simplify right side
    78,525.86x = 4,628,962,595.84
  5. Step 5: Solve for x
    x = 4,628,962,595.84/78,525.86
  6. Step 6: Final answer
    x = 58,948.26

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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.