Home / 93,278.80-139,918.20-53,815.60

Finding the Fourth Proportional to 93,278.80, 139,918.20 and 53,815.60

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Solution

The fourth proportional to 93,278.80, 139,918.20 and 53,815.60 is: 80,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.80 : 139,918.20 = 53,815.60 : x
  2. Step 2: Convert to fraction form
    93,278.80/139,918.20 = 53,815.60/x
  3. Step 3: Cross multiply
    93,278.80x = 139,918.20 × 53,815.60
  4. Step 4: Simplify right side
    93,278.80x = 7,529,781,883.92
  5. Step 5: Solve for x
    x = 7,529,781,883.92/93,278.80
  6. Step 6: Final answer
    x = 80,723.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.