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Finding the Fourth Proportional to 48,313.98, 72,462.51 and 12,775.64

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Solution

The fourth proportional to 48,313.98, 72,462.51 and 12,775.64 is: 19,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,313.98 : 72,462.51 = 12,775.64 : x
  2. Step 2: Convert to fraction form
    48,313.98/72,462.51 = 12,775.64/x
  3. Step 3: Cross multiply
    48,313.98x = 72,462.51 × 12,775.64
  4. Step 4: Simplify right side
    48,313.98x = 925,754,578.94
  5. Step 5: Solve for x
    x = 925,754,578.94/48,313.98
  6. Step 6: Final answer
    x = 19,161.22

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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.