Home / 80,745.17-111,312.85-56,797.52

Finding the Fourth Proportional to 80,745.17, 111,312.85 and 56,797.52

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Solution

The fourth proportional to 80,745.17, 111,312.85 and 56,797.52 is: 78,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,745.17 : 111,312.85 = 56,797.52 : x
  2. Step 2: Convert to fraction form
    80,745.17/111,312.85 = 56,797.52/x
  3. Step 3: Cross multiply
    80,745.17x = 111,312.85 × 56,797.52
  4. Step 4: Simplify right side
    80,745.17x = 6,322,293,125.57
  5. Step 5: Solve for x
    x = 6,322,293,125.57/80,745.17
  6. Step 6: Final answer
    x = 78,299.34

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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.