Home / 87,744.46-121,086.87-47,457.91

Finding the Fourth Proportional to 87,744.46, 121,086.87 and 47,457.91

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Solution

The fourth proportional to 87,744.46, 121,086.87 and 47,457.91 is: 65,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,744.46 : 121,086.87 = 47,457.91 : x
  2. Step 2: Convert to fraction form
    87,744.46/121,086.87 = 47,457.91/x
  3. Step 3: Cross multiply
    87,744.46x = 121,086.87 × 47,457.91
  4. Step 4: Simplify right side
    87,744.46x = 5,746,529,778.64
  5. Step 5: Solve for x
    x = 5,746,529,778.64/87,744.46
  6. Step 6: Final answer
    x = 65,491.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.