Home / 93,453.40-128,968.61-53,172.96

Finding the Fourth Proportional to 93,453.40, 128,968.61 and 53,172.96

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Solution

The fourth proportional to 93,453.40, 128,968.61 and 53,172.96 is: 73,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,453.40 : 128,968.61 = 53,172.96 : x
  2. Step 2: Convert to fraction form
    93,453.40/128,968.61 = 53,172.96/x
  3. Step 3: Cross multiply
    93,453.40x = 128,968.61 × 53,172.96
  4. Step 4: Simplify right side
    93,453.40x = 6,857,641,991.29
  5. Step 5: Solve for x
    x = 6,857,641,991.29/93,453.40
  6. Step 6: Final answer
    x = 73,380.34

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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.