Home / 92,919.95-128,230.05-50,478.58

Finding the Fourth Proportional to 92,919.95, 128,230.05 and 50,478.58

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Solution

The fourth proportional to 92,919.95, 128,230.05 and 50,478.58 is: 69,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,919.95 : 128,230.05 = 50,478.58 : x
  2. Step 2: Convert to fraction form
    92,919.95/128,230.05 = 50,478.58/x
  3. Step 3: Cross multiply
    92,919.95x = 128,230.05 × 50,478.58
  4. Step 4: Simplify right side
    92,919.95x = 6,472,870,837.33
  5. Step 5: Solve for x
    x = 6,472,870,837.33/92,919.95
  6. Step 6: Final answer
    x = 69,660.72

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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.