Home / 79,276.77-109,339.32-70,211.64

Finding the Fourth Proportional to 79,276.77, 109,339.32 and 70,211.64

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Solution

The fourth proportional to 79,276.77, 109,339.32 and 70,211.64 is: 96,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,276.77 : 109,339.32 = 70,211.64 : x
  2. Step 2: Convert to fraction form
    79,276.77/109,339.32 = 70,211.64/x
  3. Step 3: Cross multiply
    79,276.77x = 109,339.32 × 70,211.64
  4. Step 4: Simplify right side
    79,276.77x = 7,676,892,973.68
  5. Step 5: Solve for x
    x = 7,676,892,973.68/79,276.77
  6. Step 6: Final answer
    x = 96,836.60

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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.