Home / 50,905.96-76,281.01-21,307.68

Finding the Fourth Proportional to 50,905.96, 76,281.01 and 21,307.68

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Solution

The fourth proportional to 50,905.96, 76,281.01 and 21,307.68 is: 31,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,905.96 : 76,281.01 = 21,307.68 : x
  2. Step 2: Convert to fraction form
    50,905.96/76,281.01 = 21,307.68/x
  3. Step 3: Cross multiply
    50,905.96x = 76,281.01 × 21,307.68
  4. Step 4: Simplify right side
    50,905.96x = 1,625,371,244.62
  5. Step 5: Solve for x
    x = 1,625,371,244.62/50,905.96
  6. Step 6: Final answer
    x = 31,928.90

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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.