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Finding the Fourth Proportional to 92,930.84, 128,246.13 and 50,489.40

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Solution

The fourth proportional to 92,930.84, 128,246.13 and 50,489.40 is: 69,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,930.84 : 128,246.13 = 50,489.40 : x
  2. Step 2: Convert to fraction form
    92,930.84/128,246.13 = 50,489.40/x
  3. Step 3: Cross multiply
    92,930.84x = 128,246.13 × 50,489.40
  4. Step 4: Simplify right side
    92,930.84x = 6,475,070,156.02
  5. Step 5: Solve for x
    x = 6,475,070,156.02/92,930.84
  6. Step 6: Final answer
    x = 69,676.23

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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.