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Finding the Fourth Proportional to 93,935, 129,639.27 and 53,654.78

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Solution

The fourth proportional to 93,935, 129,639.27 and 53,654.78 is: 74,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,935 : 129,639.27 = 53,654.78 : x
  2. Step 2: Convert to fraction form
    93,935/129,639.27 = 53,654.78/x
  3. Step 3: Cross multiply
    93,935x = 129,639.27 × 53,654.78
  4. Step 4: Simplify right side
    93,935x = 6,955,766,242.94
  5. Step 5: Solve for x
    x = 6,955,766,242.94/93,935
  6. Step 6: Final answer
    x = 74,048.72

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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.