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Finding the Fourth Proportional to 93,105.57, 128,463.27 and 54,866.67

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Solution

The fourth proportional to 93,105.57, 128,463.27 and 54,866.67 is: 75,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,105.57 : 128,463.27 = 54,866.67 : x
  2. Step 2: Convert to fraction form
    93,105.57/128,463.27 = 54,866.67/x
  3. Step 3: Cross multiply
    93,105.57x = 128,463.27 × 54,866.67
  4. Step 4: Simplify right side
    93,105.57x = 7,048,351,842.21
  5. Step 5: Solve for x
    x = 7,048,351,842.21/93,105.57
  6. Step 6: Final answer
    x = 75,702.79

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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.