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Finding the Fourth Proportional to 50,490.79, 69,677.78 and 27,830.67

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Solution

The fourth proportional to 50,490.79, 69,677.78 and 27,830.67 is: 38,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,490.79 : 69,677.78 = 27,830.67 : x
  2. Step 2: Convert to fraction form
    50,490.79/69,677.78 = 27,830.67/x
  3. Step 3: Cross multiply
    50,490.79x = 69,677.78 × 27,830.67
  4. Step 4: Simplify right side
    50,490.79x = 1,939,178,901.07
  5. Step 5: Solve for x
    x = 1,939,178,901.07/50,490.79
  6. Step 6: Final answer
    x = 38,406.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.