Home / 79,013.14-109,034.31-45,029.59

Finding the Fourth Proportional to 79,013.14, 109,034.31 and 45,029.59

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Solution

The fourth proportional to 79,013.14, 109,034.31 and 45,029.59 is: 62,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,013.14 : 109,034.31 = 45,029.59 : x
  2. Step 2: Convert to fraction form
    79,013.14/109,034.31 = 45,029.59/x
  3. Step 3: Cross multiply
    79,013.14x = 109,034.31 × 45,029.59
  4. Step 4: Simplify right side
    79,013.14x = 4,909,770,275.23
  5. Step 5: Solve for x
    x = 4,909,770,275.23/79,013.14
  6. Step 6: Final answer
    x = 62,138.66

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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.