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Finding the Fourth Proportional to 76,371.60, 114,404.04 and 38,930.16

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Solution

The fourth proportional to 76,371.60, 114,404.04 and 38,930.16 is: 58,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,371.60 : 114,404.04 = 38,930.16 : x
  2. Step 2: Convert to fraction form
    76,371.60/114,404.04 = 38,930.16/x
  3. Step 3: Cross multiply
    76,371.60x = 114,404.04 × 38,930.16
  4. Step 4: Simplify right side
    76,371.60x = 4,453,767,581.85
  5. Step 5: Solve for x
    x = 4,453,767,581.85/76,371.60
  6. Step 6: Final answer
    x = 58,317.07

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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.