Home / 79,313.15-109,457.91-45,320.85

Finding the Fourth Proportional to 79,313.15, 109,457.91 and 45,320.85

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Solution

The fourth proportional to 79,313.15, 109,457.91 and 45,320.85 is: 62,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,313.15 : 109,457.91 = 45,320.85 : x
  2. Step 2: Convert to fraction form
    79,313.15/109,457.91 = 45,320.85/x
  3. Step 3: Cross multiply
    79,313.15x = 109,457.91 × 45,320.85
  4. Step 4: Simplify right side
    79,313.15x = 4,960,725,520.42
  5. Step 5: Solve for x
    x = 4,960,725,520.42/79,313.15
  6. Step 6: Final answer
    x = 62,546.06

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1.5x scale

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.