Home / 70,470.20-105,590.10-58,719.80

Finding the Fourth Proportional to 70,470.20, 105,590.10 and 58,719.80

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Solution

The fourth proportional to 70,470.20, 105,590.10 and 58,719.80 is: 87,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,470.20 : 105,590.10 = 58,719.80 : x
  2. Step 2: Convert to fraction form
    70,470.20/105,590.10 = 58,719.80/x
  3. Step 3: Cross multiply
    70,470.20x = 105,590.10 × 58,719.80
  4. Step 4: Simplify right side
    70,470.20x = 6,200,229,553.98
  5. Step 5: Solve for x
    x = 6,200,229,553.98/70,470.20
  6. Step 6: Final answer
    x = 87,983.71

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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.