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Finding the Fourth Proportional to 56,367.88, 84,563.70 and 21,306.76

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Solution

The fourth proportional to 56,367.88, 84,563.70 and 21,306.76 is: 31,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,367.88 : 84,563.70 = 21,306.76 : x
  2. Step 2: Convert to fraction form
    56,367.88/84,563.70 = 21,306.76/x
  3. Step 3: Cross multiply
    56,367.88x = 84,563.70 × 21,306.76
  4. Step 4: Simplify right side
    56,367.88x = 1,801,778,460.61
  5. Step 5: Solve for x
    x = 1,801,778,460.61/56,367.88
  6. Step 6: Final answer
    x = 31,964.63

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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.