Home / 47,750.42-71,625.55-12,690.08

Finding the Fourth Proportional to 47,750.42, 71,625.55 and 12,690.08

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Solution

The fourth proportional to 47,750.42, 71,625.55 and 12,690.08 is: 19,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,750.42 : 71,625.55 = 12,690.08 : x
  2. Step 2: Convert to fraction form
    47,750.42/71,625.55 = 12,690.08/x
  3. Step 3: Cross multiply
    47,750.42x = 71,625.55 × 12,690.08
  4. Step 4: Simplify right side
    47,750.42x = 908,933,959.54
  5. Step 5: Solve for x
    x = 908,933,959.54/47,750.42
  6. Step 6: Final answer
    x = 19,035.10

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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.