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Finding the Fourth Proportional to 84,423.58, 117,037.32 and 79,929.34

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Solution

The fourth proportional to 84,423.58, 117,037.32 and 79,929.34 is: 110,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,423.58 : 117,037.32 = 79,929.34 : x
  2. Step 2: Convert to fraction form
    84,423.58/117,037.32 = 79,929.34/x
  3. Step 3: Cross multiply
    84,423.58x = 117,037.32 × 79,929.34
  4. Step 4: Simplify right side
    84,423.58x = 9,354,715,343.32
  5. Step 5: Solve for x
    x = 9,354,715,343.32/84,423.58
  6. Step 6: Final answer
    x = 110,806.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.