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Finding the Fourth Proportional to 66,484.92, 92,137.32 and 65,223.30

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Solution

The fourth proportional to 66,484.92, 92,137.32 and 65,223.30 is: 90,388.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,484.92 : 92,137.32 = 65,223.30 : x
  2. Step 2: Convert to fraction form
    66,484.92/92,137.32 = 65,223.30/x
  3. Step 3: Cross multiply
    66,484.92x = 92,137.32 × 65,223.30
  4. Step 4: Simplify right side
    66,484.92x = 6,009,500,063.56
  5. Step 5: Solve for x
    x = 6,009,500,063.56/66,484.92
  6. Step 6: Final answer
    x = 90,388.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.