Home / 79,389.91-109,558.54-43,580.22

Finding the Fourth Proportional to 79,389.91, 109,558.54 and 43,580.22

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Solution

The fourth proportional to 79,389.91, 109,558.54 and 43,580.22 is: 60,140.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,389.91 : 109,558.54 = 43,580.22 : x
  2. Step 2: Convert to fraction form
    79,389.91/109,558.54 = 43,580.22/x
  3. Step 3: Cross multiply
    79,389.91x = 109,558.54 × 43,580.22
  4. Step 4: Simplify right side
    79,389.91x = 4,774,585,276.08
  5. Step 5: Solve for x
    x = 4,774,585,276.08/79,389.91
  6. Step 6: Final answer
    x = 60,140.96

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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.