Home / 80,772.40-111,464.94-47,238.40

Finding the Fourth Proportional to 80,772.40, 111,464.94 and 47,238.40

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Solution

The fourth proportional to 80,772.40, 111,464.94 and 47,238.40 is: 65,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.40 : 111,464.94 = 47,238.40 : x
  2. Step 2: Convert to fraction form
    80,772.40/111,464.94 = 47,238.40/x
  3. Step 3: Cross multiply
    80,772.40x = 111,464.94 × 47,238.40
  4. Step 4: Simplify right side
    80,772.40x = 5,265,425,421.70
  5. Step 5: Solve for x
    x = 5,265,425,421.70/80,772.40
  6. Step 6: Final answer
    x = 65,188.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.