Home / 80,231.10-120,346.65-56,903.10

Finding the Fourth Proportional to 80,231.10, 120,346.65 and 56,903.10

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Solution

The fourth proportional to 80,231.10, 120,346.65 and 56,903.10 is: 85,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,231.10 : 120,346.65 = 56,903.10 : x
  2. Step 2: Convert to fraction form
    80,231.10/120,346.65 = 56,903.10/x
  3. Step 3: Cross multiply
    80,231.10x = 120,346.65 × 56,903.10
  4. Step 4: Simplify right side
    80,231.10x = 6,848,097,459.62
  5. Step 5: Solve for x
    x = 6,848,097,459.62/80,231.10
  6. Step 6: Final answer
    x = 85,354.65

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1.5x scale

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.