Home / 76,131.90-105,048.09-44,311.05

Finding the Fourth Proportional to 76,131.90, 105,048.09 and 44,311.05

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Solution

The fourth proportional to 76,131.90, 105,048.09 and 44,311.05 is: 61,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,131.90 : 105,048.09 = 44,311.05 : x
  2. Step 2: Convert to fraction form
    76,131.90/105,048.09 = 44,311.05/x
  3. Step 3: Cross multiply
    76,131.90x = 105,048.09 × 44,311.05
  4. Step 4: Simplify right side
    76,131.90x = 4,654,791,168.39
  5. Step 5: Solve for x
    x = 4,654,791,168.39/76,131.90
  6. Step 6: Final answer
    x = 61,141.14

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1.5x scale

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.