Home / 93,414.40-128,928.48-55,691.04

Finding the Fourth Proportional to 93,414.40, 128,928.48 and 55,691.04

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Solution

The fourth proportional to 93,414.40, 128,928.48 and 55,691.04 is: 76,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.40 : 128,928.48 = 55,691.04 : x
  2. Step 2: Convert to fraction form
    93,414.40/128,928.48 = 55,691.04/x
  3. Step 3: Cross multiply
    93,414.40x = 128,928.48 × 55,691.04
  4. Step 4: Simplify right side
    93,414.40x = 7,180,161,136.82
  5. Step 5: Solve for x
    x = 7,180,161,136.82/93,414.40
  6. Step 6: Final answer
    x = 76,863.54

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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.