Home / 76,818.72-115,148.94-29,420.88

Finding the Fourth Proportional to 76,818.72, 115,148.94 and 29,420.88

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Solution

The fourth proportional to 76,818.72, 115,148.94 and 29,420.88 is: 44,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,818.72 : 115,148.94 = 29,420.88 : x
  2. Step 2: Convert to fraction form
    76,818.72/115,148.94 = 29,420.88/x
  3. Step 3: Cross multiply
    76,818.72x = 115,148.94 × 29,420.88
  4. Step 4: Simplify right side
    76,818.72x = 3,387,783,145.87
  5. Step 5: Solve for x
    x = 3,387,783,145.87/76,818.72
  6. Step 6: Final answer
    x = 44,101.01

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1.5x scale

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.