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Finding the Fourth Proportional to 79,207.31, 109,301.91 and 45,214.45

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Solution

The fourth proportional to 79,207.31, 109,301.91 and 45,214.45 is: 62,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.31 : 109,301.91 = 45,214.45 : x
  2. Step 2: Convert to fraction form
    79,207.31/109,301.91 = 45,214.45/x
  3. Step 3: Cross multiply
    79,207.31x = 109,301.91 × 45,214.45
  4. Step 4: Simplify right side
    79,207.31x = 4,942,025,224.02
  5. Step 5: Solve for x
    x = 4,942,025,224.02/79,207.31
  6. Step 6: Final answer
    x = 62,393.55

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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.