Home / 64,915.58-89,587.68-36,620.66

Finding the Fourth Proportional to 64,915.58, 89,587.68 and 36,620.66

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Solution

The fourth proportional to 64,915.58, 89,587.68 and 36,620.66 is: 50,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,915.58 : 89,587.68 = 36,620.66 : x
  2. Step 2: Convert to fraction form
    64,915.58/89,587.68 = 36,620.66/x
  3. Step 3: Cross multiply
    64,915.58x = 89,587.68 × 36,620.66
  4. Step 4: Simplify right side
    64,915.58x = 3,280,759,969.47
  5. Step 5: Solve for x
    x = 3,280,759,969.47/64,915.58
  6. Step 6: Final answer
    x = 50,538.87

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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.