Home / 45,821-68,731.50-14,658.68

Finding the Fourth Proportional to 45,821, 68,731.50 and 14,658.68

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Solution

The fourth proportional to 45,821, 68,731.50 and 14,658.68 is: 21,988.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821 : 68,731.50 = 14,658.68 : x
  2. Step 2: Convert to fraction form
    45,821/68,731.50 = 14,658.68/x
  3. Step 3: Cross multiply
    45,821x = 68,731.50 × 14,658.68
  4. Step 4: Simplify right side
    45,821x = 1,007,513,064.42
  5. Step 5: Solve for x
    x = 1,007,513,064.42/45,821
  6. Step 6: Final answer
    x = 21,988.02

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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.