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Finding the Fourth Proportional to 56,344.70, 84,519.78 and 18,900.98

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Solution

The fourth proportional to 56,344.70, 84,519.78 and 18,900.98 is: 28,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,344.70 : 84,519.78 = 18,900.98 : x
  2. Step 2: Convert to fraction form
    56,344.70/84,519.78 = 18,900.98/x
  3. Step 3: Cross multiply
    56,344.70x = 84,519.78 × 18,900.98
  4. Step 4: Simplify right side
    56,344.70x = 1,597,506,248.79
  5. Step 5: Solve for x
    x = 1,597,506,248.79/56,344.70
  6. Step 6: Final answer
    x = 28,352.38

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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.