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Finding the Fourth Proportional to 79,097.76, 109,205.85 and 70,585.24

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Solution

The fourth proportional to 79,097.76, 109,205.85 and 70,585.24 is: 97,453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.76 : 109,205.85 = 70,585.24 : x
  2. Step 2: Convert to fraction form
    79,097.76/109,205.85 = 70,585.24/x
  3. Step 3: Cross multiply
    79,097.76x = 109,205.85 × 70,585.24
  4. Step 4: Simplify right side
    79,097.76x = 7,708,321,131.65
  5. Step 5: Solve for x
    x = 7,708,321,131.65/79,097.76
  6. Step 6: Final answer
    x = 97,453.09

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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.