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Finding the Fourth Proportional to 92,938.86, 128,253.78 and 50,497.70

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Solution

The fourth proportional to 92,938.86, 128,253.78 and 50,497.70 is: 69,685.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,938.86 : 128,253.78 = 50,497.70 : x
  2. Step 2: Convert to fraction form
    92,938.86/128,253.78 = 50,497.70/x
  3. Step 3: Cross multiply
    92,938.86x = 128,253.78 × 50,497.70
  4. Step 4: Simplify right side
    92,938.86x = 6,476,520,265.04
  5. Step 5: Solve for x
    x = 6,476,520,265.04/92,938.86
  6. Step 6: Final answer
    x = 69,685.82

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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.