Home / 79,425.43-109,607.45-45,434.28

Finding the Fourth Proportional to 79,425.43, 109,607.45 and 45,434.28

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Solution

The fourth proportional to 79,425.43, 109,607.45 and 45,434.28 is: 62,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,425.43 : 109,607.45 = 45,434.28 : x
  2. Step 2: Convert to fraction form
    79,425.43/109,607.45 = 45,434.28/x
  3. Step 3: Cross multiply
    79,425.43x = 109,607.45 × 45,434.28
  4. Step 4: Simplify right side
    79,425.43x = 4,979,935,757.24
  5. Step 5: Solve for x
    x = 4,979,935,757.24/79,425.43
  6. Step 6: Final answer
    x = 62,699.51

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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.