Home / 93,020.08-128,150.76-64,676.56

Finding the Fourth Proportional to 93,020.08, 128,150.76 and 64,676.56

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Solution

The fourth proportional to 93,020.08, 128,150.76 and 64,676.56 is: 89,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,020.08 : 128,150.76 = 64,676.56 : x
  2. Step 2: Convert to fraction form
    93,020.08/128,150.76 = 64,676.56/x
  3. Step 3: Cross multiply
    93,020.08x = 128,150.76 × 64,676.56
  4. Step 4: Simplify right side
    93,020.08x = 8,288,350,318.19
  5. Step 5: Solve for x
    x = 8,288,350,318.19/93,020.08
  6. Step 6: Final answer
    x = 89,102.81

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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.