Home / 79,421.30-109,601.64-43,613.66

Finding the Fourth Proportional to 79,421.30, 109,601.64 and 43,613.66

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Solution

The fourth proportional to 79,421.30, 109,601.64 and 43,613.66 is: 60,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,421.30 : 109,601.64 = 43,613.66 : x
  2. Step 2: Convert to fraction form
    79,421.30/109,601.64 = 43,613.66/x
  3. Step 3: Cross multiply
    79,421.30x = 109,601.64 × 43,613.66
  4. Step 4: Simplify right side
    79,421.30x = 4,780,128,662.40
  5. Step 5: Solve for x
    x = 4,780,128,662.40/79,421.30
  6. Step 6: Final answer
    x = 60,186.99

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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.