Home / 76,427.40-114,381.90-67,096.20

Finding the Fourth Proportional to 76,427.40, 114,381.90 and 67,096.20

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Solution

The fourth proportional to 76,427.40, 114,381.90 and 67,096.20 is: 100,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,427.40 : 114,381.90 = 67,096.20 : x
  2. Step 2: Convert to fraction form
    76,427.40/114,381.90 = 67,096.20/x
  3. Step 3: Cross multiply
    76,427.40x = 114,381.90 × 67,096.20
  4. Step 4: Simplify right side
    76,427.40x = 7,674,590,838.78
  5. Step 5: Solve for x
    x = 7,674,590,838.78/76,427.40
  6. Step 6: Final answer
    x = 100,416.75

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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.