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Finding the Fourth Proportional to 56,228.80, 84,440.40 and 39,704.80

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Solution

The fourth proportional to 56,228.80, 84,440.40 and 39,704.80 is: 59,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,228.80 : 84,440.40 = 39,704.80 : x
  2. Step 2: Convert to fraction form
    56,228.80/84,440.40 = 39,704.80/x
  3. Step 3: Cross multiply
    56,228.80x = 84,440.40 × 39,704.80
  4. Step 4: Simplify right side
    56,228.80x = 3,352,689,193.92
  5. Step 5: Solve for x
    x = 3,352,689,193.92/56,228.80
  6. Step 6: Final answer
    x = 59,625.84

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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.