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Finding the Fourth Proportional to 64,704.60, 89,294.32 and 35,238.28

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Solution

The fourth proportional to 64,704.60, 89,294.32 and 35,238.28 is: 48,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.60 : 89,294.32 = 35,238.28 : x
  2. Step 2: Convert to fraction form
    64,704.60/89,294.32 = 35,238.28/x
  3. Step 3: Cross multiply
    64,704.60x = 89,294.32 × 35,238.28
  4. Step 4: Simplify right side
    64,704.60x = 3,146,578,250.57
  5. Step 5: Solve for x
    x = 3,146,578,250.57/64,704.60
  6. Step 6: Final answer
    x = 48,629.90

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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.