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Finding the Fourth Proportional to 56,998.50, 85,497.78 and 15,445.50

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Solution

The fourth proportional to 56,998.50, 85,497.78 and 15,445.50 is: 23,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.50 : 85,497.78 = 15,445.50 : x
  2. Step 2: Convert to fraction form
    56,998.50/85,497.78 = 15,445.50/x
  3. Step 3: Cross multiply
    56,998.50x = 85,497.78 × 15,445.50
  4. Step 4: Simplify right side
    56,998.50x = 1,320,555,960.99
  5. Step 5: Solve for x
    x = 1,320,555,960.99/56,998.50
  6. Step 6: Final answer
    x = 23,168.26

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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.