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Finding the Fourth Proportional to 51,462.60, 77,201.10 and 21,880.20

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Solution

The fourth proportional to 51,462.60, 77,201.10 and 21,880.20 is: 32,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,462.60 : 77,201.10 = 21,880.20 : x
  2. Step 2: Convert to fraction form
    51,462.60/77,201.10 = 21,880.20/x
  3. Step 3: Cross multiply
    51,462.60x = 77,201.10 × 21,880.20
  4. Step 4: Simplify right side
    51,462.60x = 1,689,175,508.22
  5. Step 5: Solve for x
    x = 1,689,175,508.22/51,462.60
  6. Step 6: Final answer
    x = 32,823.36

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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.