Home / 55,919.85-77,156.71-40,820.73

Finding the Fourth Proportional to 55,919.85, 77,156.71 and 40,820.73

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Solution

The fourth proportional to 55,919.85, 77,156.71 and 40,820.73 is: 56,323.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.85 : 77,156.71 = 40,820.73 : x
  2. Step 2: Convert to fraction form
    55,919.85/77,156.71 = 40,820.73/x
  3. Step 3: Cross multiply
    55,919.85x = 77,156.71 × 40,820.73
  4. Step 4: Simplify right side
    55,919.85x = 3,149,593,226.60
  5. Step 5: Solve for x
    x = 3,149,593,226.60/55,919.85
  6. Step 6: Final answer
    x = 56,323.35

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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.