Home / 76,900.39-115,362.88-29,513.57

Finding the Fourth Proportional to 76,900.39, 115,362.88 and 29,513.57

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Solution

The fourth proportional to 76,900.39, 115,362.88 and 29,513.57 is: 44,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,900.39 : 115,362.88 = 29,513.57 : x
  2. Step 2: Convert to fraction form
    76,900.39/115,362.88 = 29,513.57/x
  3. Step 3: Cross multiply
    76,900.39x = 115,362.88 × 29,513.57
  4. Step 4: Simplify right side
    76,900.39x = 3,404,769,949.70
  5. Step 5: Solve for x
    x = 3,404,769,949.70/76,900.39
  6. Step 6: Final answer
    x = 44,275.07

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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.