Home / 92,920.15-128,229.96-50,478.72

Finding the Fourth Proportional to 92,920.15, 128,229.96 and 50,478.72

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Solution

The fourth proportional to 92,920.15, 128,229.96 and 50,478.72 is: 69,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,920.15 : 128,229.96 = 50,478.72 : x
  2. Step 2: Convert to fraction form
    92,920.15/128,229.96 = 50,478.72/x
  3. Step 3: Cross multiply
    92,920.15x = 128,229.96 × 50,478.72
  4. Step 4: Simplify right side
    92,920.15x = 6,472,884,246.45
  5. Step 5: Solve for x
    x = 6,472,884,246.45/92,920.15
  6. Step 6: Final answer
    x = 69,660.72

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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.