Home / 71,345.21-107,017.85-18,037.35

Finding the Fourth Proportional to 71,345.21, 107,017.85 and 18,037.35

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Solution

The fourth proportional to 71,345.21, 107,017.85 and 18,037.35 is: 27,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,345.21 : 107,017.85 = 18,037.35 : x
  2. Step 2: Convert to fraction form
    71,345.21/107,017.85 = 18,037.35/x
  3. Step 3: Cross multiply
    71,345.21x = 107,017.85 × 18,037.35
  4. Step 4: Simplify right side
    71,345.21x = 1,930,318,416.70
  5. Step 5: Solve for x
    x = 1,930,318,416.70/71,345.21
  6. Step 6: Final answer
    x = 27,056.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.