Home / 92,919.15-128,228.58-50,477.72

Finding the Fourth Proportional to 92,919.15, 128,228.58 and 50,477.72

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Solution

The fourth proportional to 92,919.15, 128,228.58 and 50,477.72 is: 69,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,919.15 : 128,228.58 = 50,477.72 : x
  2. Step 2: Convert to fraction form
    92,919.15/128,228.58 = 50,477.72/x
  3. Step 3: Cross multiply
    92,919.15x = 128,228.58 × 50,477.72
  4. Step 4: Simplify right side
    92,919.15x = 6,472,685,716.09
  5. Step 5: Solve for x
    x = 6,472,685,716.09/92,919.15
  6. Step 6: Final answer
    x = 69,659.33

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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.