Home / 76,470.18-114,705.04-20,315.92

Finding the Fourth Proportional to 76,470.18, 114,705.04 and 20,315.92

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Solution

The fourth proportional to 76,470.18, 114,705.04 and 20,315.92 is: 30,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,470.18 : 114,705.04 = 20,315.92 : x
  2. Step 2: Convert to fraction form
    76,470.18/114,705.04 = 20,315.92/x
  3. Step 3: Cross multiply
    76,470.18x = 114,705.04 × 20,315.92
  4. Step 4: Simplify right side
    76,470.18x = 2,330,338,416.24
  5. Step 5: Solve for x
    x = 2,330,338,416.24/76,470.18
  6. Step 6: Final answer
    x = 30,473.82

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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.