Home / 79,027.31-109,044.70-45,036.27

Finding the Fourth Proportional to 79,027.31, 109,044.70 and 45,036.27

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Solution

The fourth proportional to 79,027.31, 109,044.70 and 45,036.27 is: 62,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,027.31 : 109,044.70 = 45,036.27 : x
  2. Step 2: Convert to fraction form
    79,027.31/109,044.70 = 45,036.27/x
  3. Step 3: Cross multiply
    79,027.31x = 109,044.70 × 45,036.27
  4. Step 4: Simplify right side
    79,027.31x = 4,910,966,438.68
  5. Step 5: Solve for x
    x = 4,910,966,438.68/79,027.31
  6. Step 6: Final answer
    x = 62,142.65

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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.