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Finding the Fourth Proportional to 93,379.91, 128,864.11 and 50,938.43

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Solution

The fourth proportional to 93,379.91, 128,864.11 and 50,938.43 is: 70,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,379.91 : 128,864.11 = 50,938.43 : x
  2. Step 2: Convert to fraction form
    93,379.91/128,864.11 = 50,938.43/x
  3. Step 3: Cross multiply
    93,379.91x = 128,864.11 × 50,938.43
  4. Step 4: Simplify right side
    93,379.91x = 6,564,135,641.56
  5. Step 5: Solve for x
    x = 6,564,135,641.56/93,379.91
  6. Step 6: Final answer
    x = 70,294.95

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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.