Home / 76,512.90-105,584.40-42,523.77

Finding the Fourth Proportional to 76,512.90, 105,584.40 and 42,523.77

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Solution

The fourth proportional to 76,512.90, 105,584.40 and 42,523.77 is: 58,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,512.90 : 105,584.40 = 42,523.77 : x
  2. Step 2: Convert to fraction form
    76,512.90/105,584.40 = 42,523.77/x
  3. Step 3: Cross multiply
    76,512.90x = 105,584.40 × 42,523.77
  4. Step 4: Simplify right side
    76,512.90x = 4,489,846,741.19
  5. Step 5: Solve for x
    x = 4,489,846,741.19/76,512.90
  6. Step 6: Final answer
    x = 58,680.91

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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.