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Finding the Fourth Proportional to 56,461.78, 84,706.89 and 39,854.26

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Solution

The fourth proportional to 56,461.78, 84,706.89 and 39,854.26 is: 59,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.78 : 84,706.89 = 39,854.26 : x
  2. Step 2: Convert to fraction form
    56,461.78/84,706.89 = 39,854.26/x
  3. Step 3: Cross multiply
    56,461.78x = 84,706.89 × 39,854.26
  4. Step 4: Simplify right side
    56,461.78x = 3,375,930,417.85
  5. Step 5: Solve for x
    x = 3,375,930,417.85/56,461.78
  6. Step 6: Final answer
    x = 59,791.43

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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.