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Finding the Fourth Proportional to 69,850.68, 104,792.28 and 19,931.46

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Solution

The fourth proportional to 69,850.68, 104,792.28 and 19,931.46 is: 29,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,850.68 : 104,792.28 = 19,931.46 : x
  2. Step 2: Convert to fraction form
    69,850.68/104,792.28 = 19,931.46/x
  3. Step 3: Cross multiply
    69,850.68x = 104,792.28 × 19,931.46
  4. Step 4: Simplify right side
    69,850.68x = 2,088,663,137.13
  5. Step 5: Solve for x
    x = 2,088,663,137.13/69,850.68
  6. Step 6: Final answer
    x = 29,901.83

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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.