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Finding the Fourth Proportional to 47,775.60, 71,641.80 and 21,466.80

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Solution

The fourth proportional to 47,775.60, 71,641.80 and 21,466.80 is: 32,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,775.60 : 71,641.80 = 21,466.80 : x
  2. Step 2: Convert to fraction form
    47,775.60/71,641.80 = 21,466.80/x
  3. Step 3: Cross multiply
    47,775.60x = 71,641.80 × 21,466.80
  4. Step 4: Simplify right side
    47,775.60x = 1,537,920,192.24
  5. Step 5: Solve for x
    x = 1,537,920,192.24/47,775.60
  6. Step 6: Final answer
    x = 32,190.49

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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.