Home / 80,000.40-119,921-37,805.76

Finding the Fourth Proportional to 80,000.40, 119,921 and 37,805.76

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Solution

The fourth proportional to 80,000.40, 119,921 and 37,805.76 is: 56,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,000.40 : 119,921 = 37,805.76 : x
  2. Step 2: Convert to fraction form
    80,000.40/119,921 = 37,805.76/x
  3. Step 3: Cross multiply
    80,000.40x = 119,921 × 37,805.76
  4. Step 4: Simplify right side
    80,000.40x = 4,533,704,544.96
  5. Step 5: Solve for x
    x = 4,533,704,544.96/80,000.40
  6. Step 6: Final answer
    x = 56,671.02

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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.