Home / 80,500.84-120,468.75-64,666.96

Finding the Fourth Proportional to 80,500.84, 120,468.75 and 64,666.96

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Solution

The fourth proportional to 80,500.84, 120,468.75 and 64,666.96 is: 96,773.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,500.84 : 120,468.75 = 64,666.96 : x
  2. Step 2: Convert to fraction form
    80,500.84/120,468.75 = 64,666.96/x
  3. Step 3: Cross multiply
    80,500.84x = 120,468.75 × 64,666.96
  4. Step 4: Simplify right side
    80,500.84x = 7,790,347,837.50
  5. Step 5: Solve for x
    x = 7,790,347,837.50/80,500.84
  6. Step 6: Final answer
    x = 96,773.50

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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.