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Finding the Fourth Proportional to 79,527.36, 109,749.12 and 43,718.88

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Solution

The fourth proportional to 79,527.36, 109,749.12 and 43,718.88 is: 60,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,527.36 : 109,749.12 = 43,718.88 : x
  2. Step 2: Convert to fraction form
    79,527.36/109,749.12 = 43,718.88/x
  3. Step 3: Cross multiply
    79,527.36x = 109,749.12 × 43,718.88
  4. Step 4: Simplify right side
    79,527.36x = 4,798,108,607.39
  5. Step 5: Solve for x
    x = 4,798,108,607.39/79,527.36
  6. Step 6: Final answer
    x = 60,332.80

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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.