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Finding the Fourth Proportional to 64,671.09, 96,818.81 and 39,635.40

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Solution

The fourth proportional to 64,671.09, 96,818.81 and 39,635.40 is: 59,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,671.09 : 96,818.81 = 39,635.40 : x
  2. Step 2: Convert to fraction form
    64,671.09/96,818.81 = 39,635.40/x
  3. Step 3: Cross multiply
    64,671.09x = 96,818.81 × 39,635.40
  4. Step 4: Simplify right side
    64,671.09x = 3,837,452,063.70
  5. Step 5: Solve for x
    x = 3,837,452,063.70/64,671.09
  6. Step 6: Final answer
    x = 59,337.98

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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.