Home / 79,310.19-109,453.63-45,323.70

Finding the Fourth Proportional to 79,310.19, 109,453.63 and 45,323.70

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Solution

The fourth proportional to 79,310.19, 109,453.63 and 45,323.70 is: 62,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,310.19 : 109,453.63 = 45,323.70 : x
  2. Step 2: Convert to fraction form
    79,310.19/109,453.63 = 45,323.70/x
  3. Step 3: Cross multiply
    79,310.19x = 109,453.63 × 45,323.70
  4. Step 4: Simplify right side
    79,310.19x = 4,960,842,830.89
  5. Step 5: Solve for x
    x = 4,960,842,830.89/79,310.19
  6. Step 6: Final answer
    x = 62,549.88

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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.