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Finding the Fourth Proportional to 49,991.95, 75,018.18 and 21,913.63

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Solution

The fourth proportional to 49,991.95, 75,018.18 and 21,913.63 is: 32,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,991.95 : 75,018.18 = 21,913.63 : x
  2. Step 2: Convert to fraction form
    49,991.95/75,018.18 = 21,913.63/x
  3. Step 3: Cross multiply
    49,991.95x = 75,018.18 × 21,913.63
  4. Step 4: Simplify right side
    49,991.95x = 1,643,920,639.79
  5. Step 5: Solve for x
    x = 1,643,920,639.79/49,991.95
  6. Step 6: Final answer
    x = 32,883.71

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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.