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Finding the Fourth Proportional to 79,314.91, 109,457.63 and 43,506.43

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Solution

The fourth proportional to 79,314.91, 109,457.63 and 43,506.43 is: 60,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,314.91 : 109,457.63 = 43,506.43 : x
  2. Step 2: Convert to fraction form
    79,314.91/109,457.63 = 43,506.43/x
  3. Step 3: Cross multiply
    79,314.91x = 109,457.63 × 43,506.43
  4. Step 4: Simplify right side
    79,314.91x = 4,762,110,279.04
  5. Step 5: Solve for x
    x = 4,762,110,279.04/79,314.91
  6. Step 6: Final answer
    x = 60,040.55

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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.