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Finding the Fourth Proportional to 64,279.50, 88,705.74 and 35,985.78

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Solution

The fourth proportional to 64,279.50, 88,705.74 and 35,985.78 is: 49,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,279.50 : 88,705.74 = 35,985.78 : x
  2. Step 2: Convert to fraction form
    64,279.50/88,705.74 = 35,985.78/x
  3. Step 3: Cross multiply
    64,279.50x = 88,705.74 × 35,985.78
  4. Step 4: Simplify right side
    64,279.50x = 3,192,145,244.38
  5. Step 5: Solve for x
    x = 3,192,145,244.38/64,279.50
  6. Step 6: Final answer
    x = 49,660.39

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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.