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Finding the Fourth Proportional to 50,440, 69,607.68 and 28,084.48

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Solution

The fourth proportional to 50,440, 69,607.68 and 28,084.48 is: 38,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,440 : 69,607.68 = 28,084.48 : x
  2. Step 2: Convert to fraction form
    50,440/69,607.68 = 28,084.48/x
  3. Step 3: Cross multiply
    50,440x = 69,607.68 × 28,084.48
  4. Step 4: Simplify right side
    50,440x = 1,954,895,496.81
  5. Step 5: Solve for x
    x = 1,954,895,496.81/50,440
  6. Step 6: Final answer
    x = 38,756.85

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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.