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Finding the Fourth Proportional to 56,339.70, 84,520.82 and 20,801.23

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Solution

The fourth proportional to 56,339.70, 84,520.82 and 20,801.23 is: 31,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,339.70 : 84,520.82 = 20,801.23 : x
  2. Step 2: Convert to fraction form
    56,339.70/84,520.82 = 20,801.23/x
  3. Step 3: Cross multiply
    56,339.70x = 84,520.82 × 20,801.23
  4. Step 4: Simplify right side
    56,339.70x = 1,758,137,016.61
  5. Step 5: Solve for x
    x = 1,758,137,016.61/56,339.70
  6. Step 6: Final answer
    x = 31,206.01

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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.