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Finding the Fourth Proportional to 56,747.70, 85,133.70 and 17,308.80

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Solution

The fourth proportional to 56,747.70, 85,133.70 and 17,308.80 is: 25,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.70 : 85,133.70 = 17,308.80 : x
  2. Step 2: Convert to fraction form
    56,747.70/85,133.70 = 17,308.80/x
  3. Step 3: Cross multiply
    56,747.70x = 85,133.70 × 17,308.80
  4. Step 4: Simplify right side
    56,747.70x = 1,473,562,186.56
  5. Step 5: Solve for x
    x = 1,473,562,186.56/56,747.70
  6. Step 6: Final answer
    x = 25,966.91

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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.