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Finding the Fourth Proportional to 76,141.40, 114,114.90 and 36,613.40

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Solution

The fourth proportional to 76,141.40, 114,114.90 and 36,613.40 is: 54,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.40 : 114,114.90 = 36,613.40 : x
  2. Step 2: Convert to fraction form
    76,141.40/114,114.90 = 36,613.40/x
  3. Step 3: Cross multiply
    76,141.40x = 114,114.90 × 36,613.40
  4. Step 4: Simplify right side
    76,141.40x = 4,178,134,479.66
  5. Step 5: Solve for x
    x = 4,178,134,479.66/76,141.40
  6. Step 6: Final answer
    x = 54,873.36

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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.