Home / 76,645.20-114,970.80-26,730.36

Finding the Fourth Proportional to 76,645.20, 114,970.80 and 26,730.36

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Solution

The fourth proportional to 76,645.20, 114,970.80 and 26,730.36 is: 40,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,645.20 : 114,970.80 = 26,730.36 : x
  2. Step 2: Convert to fraction form
    76,645.20/114,970.80 = 26,730.36/x
  3. Step 3: Cross multiply
    76,645.20x = 114,970.80 × 26,730.36
  4. Step 4: Simplify right side
    76,645.20x = 3,073,210,873.49
  5. Step 5: Solve for x
    x = 3,073,210,873.49/76,645.20
  6. Step 6: Final answer
    x = 40,096.59

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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.