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Finding the Fourth Proportional to 79,097.64, 109,205.67 and 70,585.12

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Solution

The fourth proportional to 79,097.64, 109,205.67 and 70,585.12 is: 97,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.64 : 109,205.67 = 70,585.12 : x
  2. Step 2: Convert to fraction form
    79,097.64/109,205.67 = 70,585.12/x
  3. Step 3: Cross multiply
    79,097.64x = 109,205.67 × 70,585.12
  4. Step 4: Simplify right side
    79,097.64x = 7,708,295,321.63
  5. Step 5: Solve for x
    x = 7,708,295,321.63/79,097.64
  6. Step 6: Final answer
    x = 97,452.91

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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.