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Finding the Fourth Proportional to 92,930.40, 128,244.09 and 50,488.92

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Solution

The fourth proportional to 92,930.40, 128,244.09 and 50,488.92 is: 69,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.40 : 128,244.09 = 50,488.92 : x
  2. Step 2: Convert to fraction form
    92,930.40/128,244.09 = 50,488.92/x
  3. Step 3: Cross multiply
    92,930.40x = 128,244.09 × 50,488.92
  4. Step 4: Simplify right side
    92,930.40x = 6,474,905,600.48
  5. Step 5: Solve for x
    x = 6,474,905,600.48/92,930.40
  6. Step 6: Final answer
    x = 69,674.78

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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.