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Finding the Fourth Proportional to 64,139.50, 88,512.51 and 35,845.21

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Solution

The fourth proportional to 64,139.50, 88,512.51 and 35,845.21 is: 49,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.50 : 88,512.51 = 35,845.21 : x
  2. Step 2: Convert to fraction form
    64,139.50/88,512.51 = 35,845.21/x
  3. Step 3: Cross multiply
    64,139.50x = 88,512.51 × 35,845.21
  4. Step 4: Simplify right side
    64,139.50x = 3,172,749,508.58
  5. Step 5: Solve for x
    x = 3,172,749,508.58/64,139.50
  6. Step 6: Final answer
    x = 49,466.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.