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Finding the Fourth Proportional to 85,497.50, 128,248.86 and 29,336.81

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Solution

The fourth proportional to 85,497.50, 128,248.86 and 29,336.81 is: 44,006.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,497.50 : 128,248.86 = 29,336.81 : x
  2. Step 2: Convert to fraction form
    85,497.50/128,248.86 = 29,336.81/x
  3. Step 3: Cross multiply
    85,497.50x = 128,248.86 × 29,336.81
  4. Step 4: Simplify right side
    85,497.50x = 3,762,412,438.54
  5. Step 5: Solve for x
    x = 3,762,412,438.54/85,497.50
  6. Step 6: Final answer
    x = 44,006.11

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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.