Home / 45,557.16-68,330.66-12,280.54

Finding the Fourth Proportional to 45,557.16, 68,330.66 and 12,280.54

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Solution

The fourth proportional to 45,557.16, 68,330.66 and 12,280.54 is: 18,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,557.16 : 68,330.66 = 12,280.54 : x
  2. Step 2: Convert to fraction form
    45,557.16/68,330.66 = 12,280.54/x
  3. Step 3: Cross multiply
    45,557.16x = 68,330.66 × 12,280.54
  4. Step 4: Simplify right side
    45,557.16x = 839,137,403.36
  5. Step 5: Solve for x
    x = 839,137,403.36/45,557.16
  6. Step 6: Final answer
    x = 18,419.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.