Home / 76,138.30-114,207.45-36,699.40

Finding the Fourth Proportional to 76,138.30, 114,207.45 and 36,699.40

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Solution

The fourth proportional to 76,138.30, 114,207.45 and 36,699.40 is: 55,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,138.30 : 114,207.45 = 36,699.40 : x
  2. Step 2: Convert to fraction form
    76,138.30/114,207.45 = 36,699.40/x
  3. Step 3: Cross multiply
    76,138.30x = 114,207.45 × 36,699.40
  4. Step 4: Simplify right side
    76,138.30x = 4,191,344,890.53
  5. Step 5: Solve for x
    x = 4,191,344,890.53/76,138.30
  6. Step 6: Final answer
    x = 55,049.10

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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.