Home / 77,090.45-115,611.03-24,487.65

Finding the Fourth Proportional to 77,090.45, 115,611.03 and 24,487.65

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Solution

The fourth proportional to 77,090.45, 115,611.03 and 24,487.65 is: 36,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,090.45 : 115,611.03 = 24,487.65 : x
  2. Step 2: Convert to fraction form
    77,090.45/115,611.03 = 24,487.65/x
  3. Step 3: Cross multiply
    77,090.45x = 115,611.03 × 24,487.65
  4. Step 4: Simplify right side
    77,090.45x = 2,831,042,438.78
  5. Step 5: Solve for x
    x = 2,831,042,438.78/77,090.45
  6. Step 6: Final answer
    x = 36,723.65

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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.