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Finding the Fourth Proportional to 56,900.40, 85,352.76 and 21,843.60

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Solution

The fourth proportional to 56,900.40, 85,352.76 and 21,843.60 is: 32,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.40 : 85,352.76 = 21,843.60 : x
  2. Step 2: Convert to fraction form
    56,900.40/85,352.76 = 21,843.60/x
  3. Step 3: Cross multiply
    56,900.40x = 85,352.76 × 21,843.60
  4. Step 4: Simplify right side
    56,900.40x = 1,864,411,548.34
  5. Step 5: Solve for x
    x = 1,864,411,548.34/56,900.40
  6. Step 6: Final answer
    x = 32,766.23

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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.